Jerry Banfield Shop
☰

Caffeine AI Review: Building Apps on ICP by Prompting

Caffeine AI Review: Building Apps on ICP by Prompting

I think Caffeine AI is the most serious way to build a real app on the Internet Computer right now, and I built my own site on it. You describe what you want in plain language, it writes the backend and deploys it on chain. I rebuilt the front page of jerrybanfield.com from one long voice-memo prompt, and it came out faster than the site it replaced.

The number that started this for me is 15 billion lines of code. Dominic Williams said Caffeine has now generated that much, a large share of it in Motoko, the language built for AI agents. I did not know what that meant, so I compared it to my own site. My whole website is about 245,000 lines, so 15 billion lines is roughly 61,000 sites like mine. I rounded aggressively, and I explain both comparisons in my post on the 15 billion lines.

My honest read is that this measures activity, not finished software. ChatGPT and I agreed on that. Generated lines are not polished, maintained code, and agents can rewrite or delete what they wrote. For scale, the Linux kernel is about 44 million lines, so 15 billion is roughly 340 kernels. There is no public method for how the 15 billion is counted, so I treat it as a velocity number.

Here is where I land on the bigger claim. I would give the 15 billion figure nine out of ten as evidence that Motoko is getting heavy AI testing. I would give it maybe five out of ten as proof that Caffeine is succeeding commercially. As direct evidence that ICP token demand is exploding, I would say not yet. I hold ICP, so weigh that however you like. The idea from that exchange that interested me most is the question of who writes the code. If AI agents become the developers, humans never have to learn a new language by the millions.

My view developed over about two months. The oldest post in this group is my June 15, 2026 video comparing Caffeine with Replit, Lovable and Bolt, which argued that those tools trap you in rented infrastructure with costs that keep climbing. In that post I said Caffeine was the one vibe-coding app I would try, and I had never used the others. I also reported that the previous version of my site on ICP cost less than $10 in ICP to host for more than a year, with tens of thousands of visitors.

The same day I posted the one-prompt site video. I dictated about 11 minutes into my iPhone's Voice Memos, rough transcription and all, and Caffeine turned it into a one-page site with a booking button, a contact form, testimonials and links to my channels. My Google PageSpeed scores were 98 on desktop and 87 on mobile. The simple site I had been using scored 85 on desktop and 83 on mobile.

The practical lessons are in the step-by-step tutorial. The biggest one is to get clear on what you want before the first prompt. I dictate in detail, run it through ChatGPT or Gemini, and only then paste it into Caffeine. Plan on the $29-a-month tier, because the 40-credit starter was not enough for me and a custom domain is what makes a site look legitimate. Redoing jerrybanfield.com several times cost about 50 credits, while my more advanced jerrybanfield.net burned around 150. One credit is about 25 cents.

Then the August post added what I think is the real point. My site now takes ICP payments and has a built-in chat, and every reaction, post and image upload burns cycles on the blockchain. The traffic figures there come from my own Google Search Console data. I am not going to tell you the token will follow. What I can say is that a site that does more than sit there now does real work on chain, and that is the kind of activity the 15 billion lines are a proxy for.

If you are new to ICP, start with what the Internet Computer is.

Below you will find four posts in full, newest first. Read the tutorial if you want to build something this week, and the 15 billion lines post if you want the argument about ICP. Prices and credit costs change, so check current Caffeine pricing before you commit.

On this page

Every post I have written on this subject is below in full, newest first, each under its own heading.

  1. Caffeine AI's 15 Billion Lines of Code Equal 61,000 of My Websites (August 14, 2026)
  2. Caffeine AI Built Me a Website on the Blockchain in One Prompt (June 15, 2026)
  3. Caffeine AI Tutorial: Build Apps on the Blockchain by Chatting (June 15, 2026)
  4. Replit, Lovable, and Bolt Users Will Discover Secure Vibe Coding on ICP (June 15, 2026)

Caffeine AI's 15 Billion Lines of Code Equal 61,000 of My Websites

From my video published August 14, 2026.

Dominic Williams recently posted that Caffeine AI has now passed 15 billion lines of code generated, and that a big share of it is in Motoko, the language that builds for AI agents. I wanted to know what that actually means. That sounds like a lot of code, but honestly, I didn't really understand it. So I approached it a couple of different ways, and I'll share both with you here.

How Many Lines of Code Is My Website?

First, I have my own website on Internet Computer Protocol, so I asked: how many lines of code is my website? My website has over 1,000 blog posts — in fact, it has 1,337 files for my blog posts, which is 209,000 lines of code. My games are 14,000 lines. My sitemaps are 6,000. Then there's the rest: the marketplace, the Motoko backend, the Python tooling. My entire website comes out to about 245,000 lines of code.

For context, my website at jerrybanfield.com — which is awesome — is the site somebody visited about 30 minutes before I filmed this, where they paid to talk with me instantly for 10 minutes. Three minutes after they paid, I messaged them on WhatsApp. Three minutes after the message, we were on WhatsApp, FaceTime together. That was awesome. That's incredible functionality on my website that would have cost me tens of thousands of dollars to pay a developer to build — and the developer would have had to know ICP. But Claude Fable just cranked this entire website out for me, all 245,000 lines of code.

So my question was: how many of my websites would Caffeine AI's total equal? Take 15 billion, divide by my website's lines of code, and you get the equivalent of about 61,000 of my websites hosted on ICP — I rounded aggressively. This flies in the face of everybody saying that nobody's building on ICP, that nothing is happening. Those lines of code are equivalent to 61,000 of my websites. And my website is a banger. It's a big website, and I'm grateful — it's making money for me and doing things that are really valuable, like making it easy for you to just jump in. You think, "Oh, I want to talk with Jerry right now" — good, you can pay with ICP or a credit card and jump right in. That only works when I've set that I'm online, and there's a 30-minute option too. I have a chat community built straight into the site — all this functionality to build my own version of OpenChat. MAP Technical Forecasting, Inc. was the first one ever to buy it. There's a leaderboard directly on the site with everybody who's purchased — as long as you have an account and sign in, you'll be on there, whether you paid with a credit card or with ICP.

This website has taken me about a month of building it bigger and bigger on the $200-a-month Claude plan. And there's the equivalent of 60,000 other websites like it already built just with Caffeine AI. Note that my website does not even count in that total — so how much more is built on ICP beyond the Caffeine number?

Asking ChatGPT How Big 15 Billion Lines Really Is

Then I asked ChatGPT for even more context, because real talk: I don't know how big 15 billion lines of code is. That's what she said. According to ChatGPT, 15 billion lines is an absurdly large amount of generated code, but it does not mean Caffeine has created 15 billion lines of polished, unique production software. My code is polished, production-ready software being used right now; lines generated is a throughput metric, and AI agents can rewrite, delete, regenerate, or replace code. So this is the amount generated, which can then be updated and replaced.

Here's the comparison for sheer scale beyond my website. The Linux kernel tree is about 44 million lines — so 15 billion lines is about 340 Linux kernels of source code. Google's enormous internal code base has been described as 2 billion lines, so Caffeine has generated about seven and a half times that quantity of code. Again, Google's figure is a maintained, actual code base while Caffeine's is cumulative output — they're not equivalent, but you get an idea of the quantity.

Caffeine's public beta only became available less than a year ago — about 10 months. That's roughly 50 million lines of code generated a day. For all the haters and the skeptics and the people losing faith: this is generating 50 million lines of code on average a day. And based on what we've seen from Replit and other AI builders, it's probably much higher right now — probably more like 100 million today and lower in the past. The raw number is genuinely huge.

Why the Motoko Part Matters More

ChatGPT thinks the Motoko part is more interesting, because Motoko is a language for AI agents. Caffeine takes the user's natural language and writes a Motoko backend. My own website didn't need a Motoko backend until I started accepting payments and building a marketplace — then it needed one so that upgrading wouldn't break everything. So Dominic isn't just saying "look how much code our AI wrote," because in theory anyone could generate a bunch of code with AI. He's saying their relatively young programming language is being hammered by an AI software factory at enormous scale. For those of you struggling with ICP, this is the data. These are the things you need to watch: the AI is hammering out this new programming language at enormous scale.

This is ChatGPT's analysis, not mine — I literally gave it a screenshot and asked what it means, because I saw 15 billion lines of code and I don't know code well enough to have context. ChatGPT says this can matter a lot: every time an agent tries to build something, it potentially exercises different combinations of Motoko syntax, libraries, persistence, types, APIs, and ICP functionality. At human development speeds, getting billions of lines of experimentation through a relatively niche language would be practically inconceivable. Somebody is going to put millions and millions of dollars into ICP seeing what this means. This is an outlier. This is a unicorn. There's nothing else happening like this in crypto: a new programming language optimized for AI that is actually being used at enormous scale within a year, with what many people describe as no apparent marketing.

On top of this there's another useful adoption data point from DFINITY. DFINITY said in February that only three months after Caffeine's launch, users had executed more than 3.4 million build prompts. So the 15 billion figure isn't apparently coming from one giant internal demo — there's been substantial user interaction. Now, I'm obviously not going to say Caffeine has built seven Googles, because Google's is polished, operational code written mostly by humans — that's a lot different from what's happening here — and there's no public methodology on exactly how the number is counted. But here's the very important thing: this is a velocity and activity measurement.

My Website Is Pushing People Into the Blockchain

Price is going to be the last thing to move in this equation, because all of this code requires ICP to be burned to execute it — but just writing code does not generate a lot of ICP burn. Building and setting things up doesn't burn much. What it means is that things are being built, and some of those things are going to generate significant traffic. My little jerrybanfield.com website right now gets hundreds of visits a day, and it is literally pushing people into the blockchain.

Put all this together in your brain. My website blog has 1,270 posts on it. Every single one of those posts was created with AI from my videos — and I went through and put my books and old videos on there too. I still need to go through and have the calls to action changed to point to the store. Those posts sit there being indexed by Google — well, not all of them, because Google is dragging its feet. Looking at my web search performance in Google Search Console: I started back with a one-page website built with Caffeine AI, then I shifted over and started cranking blog posts out. Google still doesn't even have hundreds of them indexed, but you can see the traffic — I'm sending people directly into the blockchain every day, straight off of Google search, and every visit generates transactions automatically. I've just started doing this, and it often takes a while to get indexed, but I'm already getting hundreds of clicks every single month that generate ICP transactions going straight into the blockchain.

And I've just built the site up to do heavier transactions: taking ICP payments, and building it out into a chat. Every single reaction, every single post in there, every image upload — these are all now burning cycles on my website. I've had a website on ICP with Caffeine AI most of the year, but for most of the year it wasn't burning much in the way of cycles. Now I've cranked it up with all this new functionality, which increases the cycles. Instead of a one-page thing where people click through to somewhere else, my website is being built as a platform where you can come and stay — get recognized on the leaderboard, be the first to drop a tip and have your message up there. I'll consistently feature anybody who drops a tip, and the largest all-time tip will have a leaderboard spot. After months of having my website on ICP, I'm starting to build a real business system. This stuff takes time.

The price will be the last indicator that something important has been happening — these are the earlier indicators. There's going to be somebody with a lot of money who puts all this together, and ICP is so small right now it could take one single person. It's going to be a little fun. We could have it happen again where the price goes up 3x in a week — and maybe next time it won't immediately crash back down. Maybe next time it never goes back to $2 again, like how Bitcoin never went back to $170 after I bought it down there. It never went back. These are the things you need to be watching.

To wrap this part up, look at what the AI said: this is where it turns from an impressive AI development statistic into an economic story for ICP. This is what no other blockchain has.

An Economic Story No Other Blockchain Has

Other blockchains don't have an economic story. And remember, my data is not even counted in Caffeine's number — anyone building something more advanced than what Caffeine can do isn't counted in that total either. Caffeine deploys applications on ICP, and ICP computation ultimately consumes cycles. DFINITY explicitly identifies Caffeine and on-chain powered usage as potential drivers of ICP burn.

Look at how the AI scored it. As a headline number: nine out of ten impressive. As proof that Caffeine is succeeding commercially: maybe five out of ten. And that's what's important here — Caffeine, whether it succeeds or fails, is bringing people onto the ICP blockchain. MultiDex, whether it succeeds or fails, is bringing people onto the ICP blockchain. Jerrybanfield.com, whether it succeeds or fails, is bringing people onto the ICP blockchain who don't even know it. People searching Google and landing on my website are generating transactions and burning cycles, and some have never even heard of crypto — or they've heard of it and have no idea they're on a blockchain. That's the only mass adoption setup in crypto that's going to work. As evidence that Motoko is getting an extraordinary amount of AI usage testing: nine out of ten. But as direct evidence that ICP token demand is exploding: not yet. The last step is the token demand exploding.

The Silent Accumulators

Right now is when people get in early, figure this stuff out, and secretly accumulate without telling their audience or their other investors — getting their bags loaded before they tell anybody else. Realistically, most of the people who figure this out are not going to be loudmouthed, attention-seeking YouTubers like me who just want to give their audience the absolute best value. I've learned that when I give my audience the best value, it comes right back to me. Instead of tricking you and playing short-term games, I give massive value — and then you come to my website, you pay for the chat, you pay to talk to me now, somebody drops a tip just to give money and be up on the wall. When I give massive value, I feel good and I get massive value back.

But somebody who doesn't operate like me is going to figure this out and accumulate as silently as possible. Once they've put in everything they can — maybe millions, maybe tens of millions, maybe hundreds of millions of dollars — then they'll tell everybody else about it, because their bags will be loaded and they'll be ready to pump it. You have no idea how many crypto influencers right now are secretly accumulating ICP. You've got Superman — hundreds of thousands of followers, consistently throws ICP and his 30x calls up on his thumbnails. I know he's bought some ICP and he's sitting on it. He doesn't talk much about it; he mentions it occasionally, but it's sitting there in his bag. There are other crypto YouTubers who don't talk much about it either, but they've got their bags loaded as well. And then there are some who probably can't even talk about it. These data points are a huge deal.

When AI Agents Become the Developers

Here's the most interesting thesis from the AI: humans never needed to adopt Motoko by the millions if AI agents become the developers. What Dominic's tweet indicates is a paradigm shift — and, not financial advice, there's a high probability that will equal huge price action at some point. Historically, a new programming language needed to convince hundreds of thousands of humans to learn it. Now Caffeine and things like Claude are cutting humans out of the equation and going straight into a programming language locked onto ICP, and the AI is just building and going nuts with this language. When you put all of that together, the AI thinks this announcement is much bigger than the number 15 billion.

So if you want to stay happy with ICP, watch Dominic's posts, watch Pierre's posts like I went over in the last video, watch Blockchain Pill, Bobby O, and Michael Duffy — and you can follow all of my coverage on my ICP Crypto playlist. You're going to be really grateful for where you're at today, because when the price moves, you're going to have your bags loaded — which is obviously not financial advice; that's just what I'm doing. When the price moves, I believe I am going to be very rich. And yes, if that happens sooner, I might be able to relax more. But part of the fun in life is being able to wait and sit with the uncertainty — when you do get the reward, the path is so much better because you dealt with the waiting.

I appreciate you watching, and I would love to get to know you better and build a relationship. Whether you want to drop a tip on my website and send a message that I'll be showing off across my videos, join us in the community chat — where MAP Technical Forecasting was the first one to jump in with us, and where you'll be on the leaderboard — or talk with me and schedule a call and see just how fast you can get a hold of me: I'm here, and I'm ready to get to know you better.

And you're doing all of it through the ICP blockchain. Thanks for watching, and I hope to see you on jerrybanfield.com soon.

Caffeine AI Built Me a Website on the Blockchain in One Prompt

From my video published June 15, 2026.

What Caffeine AI Just Did for Me

ICP's Caffeine AI just built me an entire website in a single prompt directly on the blockchain. It is so much better than my website. I've never even tried vibe coding before, and it's all on the blockchain, meaning it's secure, it's sustainable, and it then made my website faster than what I've already been using, which was geared completely for speed. I know I make a lot of videos talking about how much I love Internet Computer Protocol, and a lot of them end up being just kind of having some faith and hoping things work out. I'm going to show you inside what it actually looks like here and all the details.

This is crazy what this technology can do, and then that it's putting it on the blockchain, guys. I've never been more impressed with Internet Computer Protocol and the DFINITY team than I am right now. This is absolutely incredible. If you want your own website, holy, this is amazing.

If you want the full backstory on why I keep coming back to this technology, I cover it across my my ICP Crypto playlist.

The Cheap, Fast Website I Was Stuck With

So first, let me show you the garbage website I've been using because it only costs $50 a year, and the main value proposition of the old website I was using is that it could load really fast, which I really care about, and it was super cheap. So this is a website I had, Jerry Banfield, YouTuber, scheduled a call, and then it's got a list of my books, which nobody was buying. Okay? So this is a super simple website just designed to load really fast. I've been wanting to upgrade my website for a while, and I've been waiting for Caffeine version 3.

The Site It Built From a Single Prompt

So look at what happened with Caffeine AI. Look at this website it built me. Now, yes, I realize on the upper right, this is not my picture, but I fired a single prompt, and I'm going to replace this picture with one of me. This is a website it made with a single prompt, and what did I do to generate the prompt?

How I Made the Prompt in Voice Memos

I literally just went into voice memos. I opened voice memos on my iPhone, and this is fully usable on mobile app with your internet identity. So you can just log in like I did. On the mobile app, and I just talked to the Apple voice memos, and I went on and on. I rambled for like 11 minutes about all the stuff, and the prompt didn't even come through very clearly. The transcription was pretty off. Like it said, I used to be 80 pounds overweight, and if you noticed in here, in the prompt, it put that it was an 80 pound note. All right, so this is a sloppy prompt off the top of my head that I just started writing, rambling on about the kind of website I wanted.

So this was not like a careful, this was literally my first try ever at vibe coding. Now, look at this website.

If you want to try this yourself, I walk through the whole process step by step in my Caffeine AI Tutorial: Build Apps on the Blockchain by Chatting.

Walking Through Every Section It Built

Look how professional and beautiful it looks. First of all, it says, one on one Zoom calls up here, immediate value proposition, talk to Jerry. Now, I might change some of the little details of the text, but 14 years as a full time creator, 10 000 videos, crypto, business, health, dating, sobriety, and this, all right, I did not give it a link. I did not give it a link to actually schedule a call for me. It automatically linked calendly com slash Jerry Banfield. I'm like, holy crap, that's my actual link, but I use Acuity Scheduling normally. And then it did a video, it linked directly to my Jerry Banfield coach channel, which I'm rebranding into, a YouTube coach, and then just the rest of life coach.

It linked directly to my channel. And I don't think I actually.. I don't think I actually gave it the URLs in here to work off of. I just was talking about my channels. I'm not sure if I even went into my actual channel names. I didn't. I just rambled the names off the top of my head. It correctly linked it. But look how beautiful this website is. So I rambled on and on, and it made a website. I've never had a website that's looked this good before because I've always been of the mindset I should be able to do it myself, but I hate doing web design.

So I've always had garbage looking websites. Look at this website. It has all the different topics, crypto and ICP, online courses and business, dating and relationships. This video's side pitch is a great, maybe.. Health and weight loss, gaming and streaming, life, family, and addiction. And then it has another call to action button. It has a call to action up here, a call to action down here. And look, the page, it has links on the top that go straight down. It has specific sections. Like, I made millions selling online courses. It lays that out very clearly. Like, guys, this.. I've been talking ICP. I've done thousands of videos.

The execution of this technology successfully and being able to put it on the blockchain and burning ICP when this is the end deliverable, I haven't even got into the best part, all right? I'm saving the best part of this for a few minutes because I'm showing you how I went through this for real. So this.. I looked, I'm like, holy crap, like content strategy. Selling courses. Like, this perfectly positions your crypto portfolio. It positions all the calls, the topics, then each one individually, crypto portfolio, selling online courses. Then here's one specifically about being a content creator, another schedule a call button. Then it links all of my YouTube channels here.

It got every single link. It missed on the Jerry Banfield crypto reviews because I didn't go in there, but it got all the rest of the links directly right. All the handles. I didn't even tell them which ones it was. It just got all those right. And I can easily go into the prompt and be like, change that to at Jerry Banfield crypto reviews. It has, it didn't put specific videos in here because I didn't give it any, but it has links to videos like you can go to each channel and I could link individual videos on here. Then it has book a call. Then it talks about health and sobriety, dating, individual buttons for each of these.

Like, and look how beautiful this is. That the colors. Match my vibe. Then it started doing testimonials in here. And these testimonials are very close to real ones. People have given me over the years, another schedule call button. All right, we're getting down here now. It also included the contact form in here too. I said, I wanted a contact form. And it has a message form that it built from scratch and schedule a call. Now look how beautiful the bottom looks. The bottom has all the different. Parts of the page linked. You just click on it. This website looks beautiful and professional. I saw this.

I'm like, oh my God, I can't believe it just did this. Now it did take like 10 minutes to crank this thing out. But the first shot with it was incredible. So my immediate critique that I thought was there's no way I just literally cranked this website out with a single prompt. There's no way it actually is fast also.

Testing the Real Page Speed

So I went to do the page. Speed test on Google and the, the desktop loaded perfectly. The mobile was like 80 out of a hundred. So then what I did, I went in and copied. I took the Google page speed insights out. I was trying to see like, what can this really do? How good is this really? So look what I did. I went in here and said, here are the Google page speed insights. Can you make the page load faster on mobile by making the adjustments based on what Google says? It's slowing the page down. And I copied. And pasted Google's insights verbatim, use efficient cache lines, et cetera.

And then it said about a few minutes, two minutes later, I guess, eight minutes, 10 minutes later between when I pasted it, it said it found several clear performance wins, JavaScript, not being minified, et cetera. It cranked out a faster version of the website, fixing the backend. So it load faster. Now let's take a look at the actual page speed insights. Cause when I first saw this, I figured, ah, it must be some junky coded AI website that's slow and sloppy raw as my dad would say wrong again, boy wrong again. So look at this. So this is my Google page speed insights for my single page crappy website.

I made myself. Now, the only point of this page that the current website I have in a current web hosting, the only point of it is to go fast like that and be cheap. And yet this website, I already have 83 mobile, 85 desktop. It's slowed down. Significantly since I got it. And it was a hundred of like a few months ago, I got it because my last ICP website, I couldn't change it. It was static, but cause caffeine AI didn't exist. All right. That's the one I've got now. Now look at caffeine AI, caffeine AI cranked out one that gets a 98 on the desktop and the mobile is an 87.

It looks beautiful on mobile and it's faster than the one I've been using. I'm like, holy crap. Not only did this AI crank out a beautiful website first try and intelligently fill in the blanks for things I was vague about, it cranked out a website that's faster than the one I've been using. Whoa. And I then went in for more details on Pingdom and it has a 93 on there. The page size is only, is not, is only. A half megabyte and the load time here, just over a half second. That is outstanding. I've struggled so hard for years with WordPress websites. I even did pay developers at various points and that was annoying to try and get them to change stuff.

This, then what I can do, I can go into caffeine AI and say, add expires headers to speed this up. This is, I'm shocked. Like I'm not easily impressed. This is shocking how good this is. And Dominic was talking about how people will be blown away. I am blown away. And this is built on the ICP blockchain. When I host my website here, it should have practically infinite scalability because it's on the ICP blockchain. And if I get a whole bunch of traffic in one day, it's just burning cycles out of the caffeine AI account. Wow. And now I can go into the AI, I can adjust things and be like, here's a picture of the AI.

Replace this picture with a picture of me, replace, and I can go to chat GPT and cross reference and be like, Hey, can I optimize this?

Iterating, Exporting, and Why the Blockchain Matters

I can now iterate every single detail of the website and get it changed. Just how I want, not only that, but if I wanted to, I could go in business building websites for local businesses that have garbage websites and I could build them better websites on here too. And the more people that build on this, the more we're going to be burning ICP to pay to host this. The more of the data I showed yesterday on the blockchain being up to 12 terabytes, you start hosting websites like this and the data that's on the blockchain is just going to go up and up. And and by having this on caffeine AI from everything I see, this website is extremely secure compared to just putting this on some AI builder. If you're looking at this and thinking you want to build something like it on ICP and Caffeine yourself, you can schedule a one-on-one call with me and we'll think through your own build and AI workflow together.

And I can even export the code and try and take this somewhere else if I want to. Also, this is amazing. This is everything I've been hoping ICP would be that real results here. To me, this proves the technical competence of the DFINITY team when so often we're left just, talking about things that we don't know. We, it's difficult to dive in there and really look at it and understand it ourselves. I understand page speed. I understand building websites, at least what they should look like. Not as strong on doing it myself, but I, I know a great website when I see one, I'm like, God, this looks beautiful and professional.

This is exactly why I keep saying ICP and Claude Code Is the Best Web Hosting Setup Online for anyone serious about owning their site.

How many more calls do you think I'm going to convert on this website versus this, this garbage one I was using myself.

What It Costs and Why I'm Confident in ICP

And then when you go into caffeine, there's, there's pricing that's very transparent on this too. When you go to their homepage, you can see, I, all I need to do is pay like $29 a month. And this will, I can get a custom domain. I can send emails directly to my users like contact. I can get app insights. I could work on more than one website if I wanted to build another website and I could, make, make this more advanced if I wanted to. And this is, this revenue is then coming into caffeine AI, which is, it's a nice business model here. And the fact that all this is tied up with ICP on top of that, like there's, I, I feel extremely confident in my investment in ICP today, seeing what they actually were able to do, seeing the real results of an application.

Wow. Now I need to get on the affiliate program. They have an affiliate program on here. I need to get an affiliate link and and they have a wait list for that right now. But man, this, this is one of the best days I've had on ICP. And the long time, because when you look at the price on a day to day basis, believe it or not, I don't even know what the price is today. I'm checking it right now in real time. It looks like the market pumped a bit. ICP is up to $2 and 50 cents right now. When you have applications like this that are building with ICP, I'm telling you this, this is incredible.

We've got, this is the best single data point I've seen where I'm like, I'm in exactly the right place with ICP. Everything feels perfectly aligned. I hope you've enjoyed the video and I've got five YouTube channels. I'm a full time YouTuber. Would love for you to explore those and keep coming back. Watch some more Jerry Banfield videos. I'm going to work on getting the custom domain integrated, getting this caffeine website polished off, and then switching my domain over so that my website going forward is directly on ICP with Caffeine AI.

Caffeine AI Tutorial: Build Apps on the Blockchain by Chatting

From my video published June 15, 2026.

Caffeine AI lets you build real applications on the Internet Computer just by chatting — and because they run directly on the blockchain, you get the security and verifiability that comes with it, plus built-in crypto features like depositing ICP and CKUSDC. This is a hands-on walkthrough of how I actually use it, based on the two sites I've built: jerrybanfield.com and jerrybanfield.net.

What I've built with it

jerrybanfield.com is a clean one-page site I built mostly from a single prompt — perfect for coaching or consulting traffic you want to convert. jerrybanfield.net was far more advanced: a platform where advertisers pay creators to make content, with fully integrated crypto payments. Every user gets a unique deposit address, can swap ICP to CKUSDC in one click, and withdraw — plus campaigns, submissions, messages, and an admin dashboard. That one took 70-plus versions and a lot of learning to get working.

Start with a detailed first prompt

The single biggest lesson: get crystal clear on what you want before your first prompt. I dictate everything I want in detail, run it through ChatGPT or Gemini to turn it into a clean, specific prompt, and only then paste that into Caffeine AI. The more clearly you describe and visualize what you want, the faster and cleaner the output. When I rushed jerrybanfield.net with a vague prompt, I paid for it later in bug-fixing sloppy code.

Iterate with screenshots

After the first build, you iterate. The best way to communicate changes is screenshots — screenshot a layout you don't like, or a site you do like, paste it in, and tell it what to adjust. For a static one-page site that's straightforward. It gets more involved when you build something with logins and back-end logic.

Pricing, page speed, and publishing

Get the $29/month plan — the starter 40-credit plan isn't enough, and you really want a custom domain because it's what makes a site look legitimate. Redoing jerrybanfield.com several times only cost about 50 credits; jerrybanfield.net burned ~150. If your site loads slowly, run it through Google PageSpeed, screenshot the results, and paste them in — that's how I got mobile page speed up around 89. To publish, open the version panel in the top right, pick the version you want live, and hit publish; give the canisters a few minutes to upgrade. Note the *.caffeine.xyz draft is only a live preview — anything you sign into there won't appear on the live site.

Security audits and a few hard-won lessons

Any time, you can simply tell it to run a security audit and it will find and fix high- and medium-severity issues — do this intermittently. You can also drop the code into another AI like Claude for a second check. A few things I learned the hard way: skip the admin dashboard unless someone else is managing the app for you, and be aware that Internet Identity sign-in can noticeably slow your whole site. The crypto bugs took the most patience — figuring out it was using a CKUSDC test canister instead of the real one, and that I needed a plain ICP deposit address (no memo) before swapping. I tested one thing at a time, fixed each broken piece, and gave it exact screenshots and error messages. If something hangs, tell it to add visible error output so you can diagnose it.

Marketplace, custom domains, and credits

If someone else has already built something that works, you probably can too — browse the app marketplace and remix an existing app to move much faster. Start from scratch only when you have a very clear vision. To map a custom domain, buy the domain (or bring your own), add the CNAME and TXT records — I use Cloudflare — and set a permanent 301 redirect from the top-level domain to the www version, since the attachment uses www. Get a real domain; the default subdomain looks unprofessional.

On cost: 100 credits is $25, so one credit is about 25 cents. Canister top-ups are essentially your hosting bill, and across hundreds of visitors and all my builds I've drained only around $5 in top-ups so far. Fire off as much as you can in a single prompt to conserve credits, since you're charged per prompt. When you're happy, you can publish to the marketplace with a thumbnail, description, and tags — a great way for people to discover you. Honestly, this is the best website I've ever had, and it was built by chatting. If you want to talk through your own app, join Jerry Banfield Family and bring it to a weekly call, and you can follow more of my ICP work on my ICP playlist.

Replit, Lovable, and Bolt Users Will Discover Secure Vibe Coding on ICP

From my video published June 15, 2026.

Why I'm Telling Replit, Lovable, and Bolt Users This

If you're vibe coding with Replit, Lovable, or Bolt, you're going to love this video because I'm going to show you a new platform that has huge advantages over using these other applications for vibe coding. And they're hidden, they're not easy to see. But once I show them to you, you won't be able to unsee them. So let's talk about the context here. Now, vibe coding is exploding, but the stack underneath is what almost all people who are coding with these AI apps don't think about. And this is sneaky because in the beginning, it's easy to use Replit, Lovable, or Bolt to just create an application, create a little website, and then you keep paying indefinitely on it, thinking, that's awesome, look how easy this was.

But for the long term, there's a lot of hidden problems. So we're going to go into this.

The Hidden Problem With Building on the Old Web

The hidden problem is that most AI app builders still deploy on the old web. This is rented infrastructure, central points of failure, costs that run forever, and these lack security. Especially if your application gets popular and can very easily crash. If you're just playing around and want to do a little website to test something out, if you're just having fun, then Replit, Lovable, and Bolt are just fine. However, if you want to build a serious business, if you want to actually make money, which a lot of us that are out here building stuff online, making full time incomes, like, I want to build stuff for money, not stuff to just play around and have fun.

If that sounds like you, then Caffeine AI is something to learn about. Because if you're building with these vibe coding apps, there's serious problems with the data ownership, the security, and the monetization. Where Caffeine AI is different, it's because the entire infrastructure behind the application is different. It's built on Internet Computer Protocol, which is a blockchain that puts the entire tech stack fully on chain. So if you've heard of Bitcoin, imagine Bitcoin, except you can actually put the whole website and all the data and everything on a blockchain. Fully on the blockchain, which is absolutely incredible. So let's look at what the big difference is so you can understand what I'm saying.

I unpack this Bitcoin comparison in much more detail in Bitcoin Is a $1.6 Trillion Spreadsheet. ICP Is the World Computer. if you want to understand why putting the whole stack on chain is such a leap.

The bottleneck here is that the old stack, what most internet is built on today, gives you fast iteration, cloud databases, managed sign in hosting, et cetera. It feels really easy to get started with, but the problem is as you continue using it, and if you want to scale it, it gets more expensive and it's not secure. And then trying to monetize it outside of selling it to a VC is difficult. What these, if you haven't thought about this before, there's some really important things to think about. Because if you're building on these AI app builders, there's a platform in the middle. Now, most of the time you wouldn't think this is a problem.

You're just building your business, your website, and you just take for granted that there's some middle company that could censor you, that could keep raising your hosting bill, that could be creating in a way that's insecure and allows your app to easily get hacked. And then you have to keep updating this all the time too. So if you want a real business, you want infrastructure that's durable, audible, and auditable, and harder to tamper with. You want your cost to tie more directly to the actual usage. You want an easier path to build your app to have a functional product to a community owned network. Bolt, Replit, and Lovable can absolutely help you get something live.

But where they're weak is the trust and the ownership model after launch. And that's the problem. That's the trap. These apps essentially trap you into their infrastructure. And most people don't know there's an alternative, which is why I'm doing this video.

How On-Chain Hosting Changes the Business Model

So Caffeine changes the entire business model here with on chain hosting. Because with these apps like that, I've said their name several times, you have to pay a fixed cost. And the more you want to use them, you may have to start paying a lot of money to use them, regardless of how much actual traffic you get to your website. ICP is different because everything is fully on chain built in canister smart contracts. That means these are guaranteed to run. Their state is on chain, audible, and cryptographically verifiable. That means you don't have to have firewalls or security teams. I've seen people talking about how easy these vibe coding websites are to hack.

Hackers out there making fun of people's vibe coding because they can just go in and destroy their website very easily. That's a weak foundation that then leads to fear and anxiety. And spending more and more money and feeling like you don't have something really valuable or just giving up all the way. Plus, if you have a lot of usage, you need usage based economics, especially if you have variable usage. Because what if you build your website up? And if I'm hosting that on one of these AI apps that are built on centralized infrastructure, then I have to pay all the time, even if nobody goes to my website.

Why I Only Pay for Actual Traffic

What I love on ICP, I've had my website on ICP and I'm going to do a demo how I rebuild it with Caffeine AI instead of how I had it on ICP before. And then I only pay for actual traffic to my website. This is awesome for entrepreneurs and startups because if nobody's going to your website, your hosting bill is near zero. And then if you get a whole bunch of people and you go viral, you have a huge traffic spike. You can be ready for that with ICP on Caffeine AI. Whereas in my experience, when you're using centralized hosting that's based on very fixed limits, right when you get all that traffic and you go viral and you've been trying so hard to make this happen, your website will crash.

I've had it happen multiple times. And that's why I love ICP as a hosting stack. If your traffic spikes, you just pay more for all the traffic. And as soon as the traffic spike stops, your hosting costs are right back to where they were. It's instantaneously scalable and massively scalable. The viral upside is huge. Now, entrepreneurs should care because you can launch just as fast on Caffeine AI as you can on some of these other platforms, but from the very beginning you can keep control of the logic and the costs. And this means for tiny experimentation, it could end up being much cheaper. How silly would it feel to put all this time into vibe coding and building this application up that you are so proud of?

I go deeper on the whole ICP story across my my ICP Crypto playlist if you want the bigger picture behind why I keep building here.

And then you're sharing that you don't care about the digital world and you're glad that and you're trying to get traffic to, and then it gets hacked. Because when you get popular, you'll get hacked if there's a way in that is where people will target you. Or if you start making a profit, you'll get hacked, or your website will crash, or your cost will suddenly go up. So it's not that nothing can ever go wrong, it's that ICP, it gives you a much more sovereign, tamper resistant, and on chain runtime with usage based resource billing. Thus, this is the best model that I see for vibe coding in a way that's sustainable into the long term.

The Monetization Feature I Saved for Last

This, and the feature I've saved that I should have teased more before, is the monetization.

Turning Your App Into a DAO

The hidden killer feature with ICP is that your app can easily transition into a DAO because it's built already into a blockchain infrastructure. Most AI app builders help you create software, but how are you going to monetize that? Well, you're gonna have to do payments through Stripe and set up a Stripe account or PayPal account, and then that infrastructure, introduce another third party, and then if you want to sell that, how are you going to sell that to somebody? You're gonna sell them your account, a VC's gonna try and buy you out. The monetization is limited and difficult, and will definitely require you doing things like verifying your identity, having payment fees, and all that can be avoided on ICP because it's directly built on chain, and you are able to turn this into an SNS or a DAO project, which is ICP, and you can do that.

It's ideal for scaling. You can transition once your application gets popular and people start using it. You've got everything you need already in place to turn it into a DAO. Imagine setting up an app on Caffeine AI that then you ended up getting thousands and thousands of users for, and then you could just go in the app and post directly on your site and say, hey, everyone, I want to turn this over to the community. We're going to launch a coin for this. The coin can be.. It can be built into the exact same infrastructure, and everything is already set up in ICP to support you with that, and then you could launch a coin, potentially raise thousands, if not millions of dollars if your application is popular directly from the community, and then it can all be controlled with a DAO.

You also have all different kinds of micro monetization models possible with this, and you could avoid even setting up payment applications if you wanted to. Now, I could easily still have people book appointments and use the app, but I don't want to do that. I could use existing payment solutions with Caffeine AI by linking to other platforms if I wanted to, the same as you have to in existing AI builders, but I also could do all kinds of micro transactions. You could build apps where you could do giveaways. We already see apps like this on ICP, like OpenChat, where you can just do a giveaway to 1 000 people and give 1 000 people a really small amount of a coin, which it can be ICP, Bitcoin, all stable coins.

There's lots of different things you can use, but this means there's.. There's deep, deep features, and they're going to release a more advanced version of Caffeine AI and keep evolving it, which means there's so many more things you can do to interact with the community, monetize, and to expand your possibilities. Plus, you're not excluded from.. You could still sell this to a VC. If anything, this would be more attractive to sell to a VC because it's much more sustainable for the long term infrastructure. Now, most people don't know this yet because they don't know about internet computer, and they've just heard about AI app builders through marketing, and user interface convenience.

Most people aren't asking the questions. These are so new that a lot of the problems are not very obvious yet. Most people that have been building on these haven't been building on them long enough to run into a bunch of problems, but you can go see people's experiences where they built things with vibe coding and got them hacked, or had scaling costs with them, or it got popular, and they had to pay a bunch of extra money to actually keep using it. And then once you scale up, it can be difficult, to cut that cost down. So this is just so new that people don't know about it yet, which is why I'm here sharing this with you. If you want to learn how to build on this with someone who is figuring it out right alongside you, you can book a private call with me and build it with me on our call.

Why AI Agents Need ICP's Trust Guarantees

Finally, if you are excited about AI agents and you want an application that's able to be there and be ready for AI agents, AI agents need stronger trust guarantees than normal applications. If you're building your apps with the existing vibe coding platforms, then you have, the credentials are scattered all over the place, the backend changes could break your agent from functioning, there's security risks, the code updates can mess things up, and it's harder to prove, if not impossible, to prove what actually executed and what data changed. Thus, if you want to be able to incorporate AI agents in your application, you need ICP's functionality. Because if you can guarantee through smart contracts that the code will execute successfully, then you can plug an AI agent into your application and feed it data back and forth, with other programs.

And as more people are building on Caffeine AI, people are going to continue to build things in the marketplace that you can just copy off their applications yourself. Thus, ICP with the canister software on chain and everything governed by the protocol execution, you've got a much stronger integrity guarantee and a cleaner base for agents doing important tasks like handling money, identity, or high value actions. Thus, if you're on an ICP builder, you can, because it's on blockchain, if you want to pull in Bitcoin and Ethereum and a lot of other cryptos, you can also do that as well. So you can build things on here that you just couldn't build anywhere else.

For example, you could build something that swaps different cryptos for each other automatically, whether it's your own wallet or a wallet for other people. And it's done in an environment that's trustworthy because it's fully on chain and secured with cryptography, which to me means Caffeine AI is the number one, one vibe coding app that I would try today and that I am the only vibe coding app I have any interest in using. I am taking my first leap into vibe coding myself and I've never even used any of the other apps because I looked at all these risks and problems up front and I said that there's no way that I want to build my app on an old cloud stack with all these issues I just described.

And then with Caffeine AI, I'm like, yes, this is where I'm building my website so that I can have, have my website function however I want to in a trustworthy environment and I don't have to keep paying hosting costs unless I get actual traffic to my website. If you want personal feedback on which stack actually fits the app you're trying to build, you can set up a call with me and we'll talk through your specific project on our call.

What Hosting Actually Costs Me on ICP

In the last version of my website that I had on ICP, the entire cost to host a website for more than a year with tens of thousands of visitors was less than $10 in ICP. This infrastructure is very cheap to use if you make fairly basic websites and you can advance it. Now, if you do heavy computation directly on the chain in your website, that could cost more to pay but most of you are not going to be using the computation to that degree. And in most cases, you'll find from what I see that ICP is much cheaper to host basic websites and mid level websites and gives you the chance to build things you couldn't build anywhere else.

For more on why I pair this hosting approach with my coding workflow, see ICP and Claude Code Is the Best Web Hosting Setup Online.

So this is something that you should know about today which is why I created it. Now, if you're new here, I'm Jerry Banfield. I'm a full time YouTuber. This is on my Jerry Banfield ICP channel and I do videos about ICP so you can watch them. Watch those to learn what's different if you're new here. And this, if you want to explore caffeine, the website is caffeine ai. You can just immediately jump in and start remixing apps that other people have made on the marketplace. And this, there's 150 apps on the marketplace that people have shared right now. And from here, this app is very early.

If you want to follow along step by step, I walk through building on Caffeine in Caffeine AI Tutorial: Build Apps on the Blockchain by Chatting.

It's still just in the second version. A new, more powerful version will be coming out soon. And this, to me, is the place to be learning and building right now because the more you know how to use this specifically, the more you are going to be able to create more and more powerful applications and you're in a community that's rapidly growing as well and you're well positioned for the future. In the future soon. And I'm reading all the comments on my videos as well. Would love to hear from you in the discussion.

Want me to make a video for you?

Send me your YouTube channel, business, crypto project, video, dating profile, or question. I record a video with my honest thoughts and send it to you privately.

Get a personal video review

Or schedule a one-hour call → · See everything in the store →