Claude Fable 5 is Already Cloning $10 Billion Apps!

0:00Claude Fable is so good. One guy said create a productivity app for me and he got something on the level of Notion. Another person said create Mario Kart for me and he got a fully playable game. Another person said I want you to create lovable for me. Now lovable is a $10 billion company that creates an app that you can build other apps with. He just two shotted it, told Claude to make it and he got it. We're going to show you all these different things that are created. We'll give you prompts that will let you create it and I'll even

0:26show you at the end what I built myself. Oh, and we'll give you tips for how to not burn through all your tokens, but actually use it to get the best value at the lowest cost. Let's get right into it. Presented by Zapier, the AI automation company. Claude Fable or Mythos is absolutely insane. On the left here, we have the actual level lovable mobile app. And here we have a lovable mobile app that I built in two prompts with

0:56Claude Fable 5. This is the chat thread. Here's prompt one and then I just said run it on simulator two and then go. So that just counts as one prompt. And then it did some stuff, did some stuff, and then I just screenshotted all the screens on lovable. I just need you to redesign it to look exactly like it. Brian, this is incredible. We have seen so many creations with Fable. We're going to go through a bunch of them today and what this guy did I wanted to first because he didn't just create a new app, he created an app that lets you build just about any other app and he

1:29actually demoed it and it works really well. I'll show it in a minute. These are exciting, right? lovable. Recreated an app builder. It This is like a new form of content. I'm scrolling like Fable first reactions of people like one shotting incredible apps. It's pretty thing is that they're inspiring me. I was able to build it. I'd like to show everyone what I built because I saw what everyone else was building and the cool thing about this is he built an app that builds other apps and he told it, "Now build Notion." And so you can see on the left, it built Notion for him. This is

1:57lovable, we know that. This is a What is it? A $10 billion company is what lovable is. On the right is the thing that he just created, also told it to create notion. I can literally hello there. This was his clone of lovable to then build notion, right? Like All right, here is you. You saw it and you said

2:20You created a a midi What is this? The I was just like, you know, playing around with this morning my first shot with it was a like a synthesizer, music production, like a like a DAW, digital audio workstation. It's got a mixer, got a got a little sequencer in there and that, you know, one shot, like 15 minutes, you

2:38know, one sentence. Okay. And yeah. Let's see. Crazy. All right, this one I really love from Dan Shipper. This is the infinite library of Babel from the Borges story. It contains all of the books in the universe because books are just strings. If you look, you can even go into bookmarks. Click one of my articles after automation and it finds it in the library. It's truly infinite. Look, I could go up the

3:01stairs. I can like look down. And he's going to show the prompts he used to build this. Seems like it took a long time to make, right? Wrong. I made this entire thing in a single prompt with Fable 5, the new model from Anthropic. Like like literally, let me show you. So, this is a prompt. It's from 4 days ago or so. I got this model

3:22a little bit ahead of time. Read Jorge Luis Borges' the library of Babel. Yeah, let me zoom in on what he's doing. Babel. And then plan and execute end-to-end a browser playable 3D game in which the player is dropped in. Blah blah blah blah Loop until it's done. Just wrote that, press enter, and it just went off and read the story, and then it just ran and ran and ran. You can see it's like looping itself and it's checking its work. After 3 or 4 hours or so,

3:47done. We're going to go and see something else. I want you to see another example of what Alex Finn did And what I like is when people show the prompts. Here's his prompt. Feel free to pause right here and grab it so you can do this with me. I want to build out a personal productivity tool. I want it to include to-do list, Kanban board, calendar, comprehensive note-taking app, Pomodoro timer, and even a little game I can play to take a break. Before building anything, please ask me any questions you have on this idea so we can build a fully fleshed-out app. I'm going to hit enter. And

4:19And we're going to see what he did. And the thing that I like is that he did ask, "Please ask me questions ahead of time." And we're going to go over what uh some of the best practices for using this. Here's the result. UI is a little ugly, but to be honest, I also answered the question to make it colorful and playful. So, I guess it is very colorful and playful. Let's see what we got. It looks like it has absolutely everything in it. So, let's

4:41do a quick task. Edit the Fable 5 video. Hit enter on that. Boom, it's on your plate. That's very, very nice-looking. Let's check out the calendar. Full calendar. Let's give it a an event right now. Check video performance. We'll give it tomorrow. We'll give it a date for Thursday. We'll give it a color. Add the event. Boom, there. This

5:02is a fully working calendar. What he's showing there is something that like could easily be done with, you know, Claude Opus or even, you know, earlier versions of it. Um I think what is really interesting now with with uh with Fable is the level of detail and the amount of I How do you say it? Like like

5:22correctness in the very first prompt. So, we're It It seems like my first impression of it is like we're stripping away the need to have these ex- extensive prompts and specs. I mean, like the the synthesizer I made, some of these like crazy like 3D rendering stuff. It's just going deep with without needing to go

5:41back and forth and and revising. It's the lack of back and forth that makes it feel magical. It just gets it. All right, before I show the next one, let me ask you this though. Now that you see this, do you think that this is going to replace Notion for people? Are they going to start building their own

5:54Notion? Are you going to do that? I mean, that is the real interesting question. I have already started building my own internal tools. I don't pay for a project management tool anymore. Like I don't I don't even pay for a notes app. I built my own notes app, you know, like I'm doing that all the time. But I'm a builder. I've been a builder for many years, right? And so and I love building with AI, of course. The real question now, as we're literally seeing people

6:18clone Notion. I I saw a guy clone Slack. I mean, and it's like an identical it you cannot tell the difference on first glance, you know? Um what does that mean for the business who would otherwise pay for a Slack or for a Notion, you know? Um like just for the sake of like killing your your SaaS subscription, probably not a good a good use case. But if if Notion is just not uh a tailor to the way that your operation works or your pipeline or your all the nuances, then like yeah, it's like spin

6:49up your own, you know? All right, I'll show you what I built that is like that. But let's take a look at one more. I like this one a lot. This I think is a sign of things to come. What he did was he said, "I want to build my own markdown editor." In fact, he I love that he even

7:03included the link for anyone to try it. Let's take a look at it. Oh, this is not his markdown editor. We're going to open it up right here. I'll open Here's his markdown editor. New document, markdown, create markdown. And here it is. It just works. This is me typing on your editor. And he called it a thing that that like all the builders

7:29are building their own markdown editors. I I've got mine that I've been using for a couple weeks and like now that's becoming like it used to be uh build your own to-do list. Now now it's like just build your own markdown editor, you know? I could comment even. This is a it. comment and it goes over there. Nice. I like this. Um

7:49Okay, next. [laughter] This guy Bijan he decided to create some fun. is the virtual drum kit sim which I have already run in the web chat. I don't really like this is always just fun to run as like the final test, I guess. So, let's peek at it and I do have the speaker on. Click anywhere to power on the audio

8:10engine. [snorts] That's very, very good spatially. This may be one of the best arranged ones. More often than not, they're not necessarily properly arranged good. We can move around the scene. We have some wood effects, we have some brass effects and then send a nice little circular carpet stage thing. We even have a stool. So,

8:31let's check the important part. Does it slap? All right, it does. Let me turn the speaker up here. I like that he can use keys to do it. This is just kind of like watching an elephant dance. It's not really useful, but it's interesting because it can do it. Um all right. [snorts] Studio lighting. He said, you know, you set up your studio, you want to figure out and he's another one who included a This is a cool one cuz you could Well, you you know, you can see how like professional filmmakers would actually use something like this. Maybe they already do use software that does this,

9:08but this guy just built it with with Vapor. Um Yeah, I can see people setting this up just for their own office, you know, you take some measurements of your office, you put it in and you want to know where you the desk should go, have it adjust it. It does seem like a lot of these you know, demos that that we're seeing float around today uh again, like just like one shot, one one small prompt can get you to that level of detail. That

9:32seems pretty impressive to me. Here's the guy who to replaced McKenzie with a prompt. Let's Let's look at it. He said, "Look, here is a McKinsey report, and I'm positive I can read it. Create a presentation like this except on AI and for the second half of 2026. Make high-quality research predictions and create graphics. Make it the same style and everything. I want it to feel like a professional doc that would pass as a McKinsey presentation like the one

9:57I uploaded." And here you go. The level of research, I think I'd want to take a look at and see is it smart? Is it useful? Did it do it based on what I want? And I That's where I think it would uh That's where I think I would have to decide whether this is better than what we had with Opus or if it's just another

10:24version of AI slop. Justine said, "I want a Monopoly game, and instead of having all these uh New Jersey-style places, I actually want it to be AI-focused." I was looking into this one, and again, like just looking at it, it's a Monopoly board. You're seeing the typical Monopoly interface, if if you will, if if you were to make it a video game. So, again, that's something that you probably could create with Opus, you know, a couple weeks ago or even a couple months ago, no problem. Uh but then then I started to reading into it, and she was talking about how like, you know, and it also took it upon itself to

10:58build in the multiplayer interface. So, you can like share a link with someone and actually play Monopoly multiplayer. And that And that again, it it's just like a level above uh capability just right out of the box or right through the first prompt. That's like, "Whoa, you know, that's That That was fast." And because it comes now with our subscription for another few days, I want to see what I could build right now before it's too late. Um This one, I don't love when people do this. He's basically said, "Look, I one-shotted No Man's Sky inventions. The riding physics are actually fun. First time a game

11:33crossed from somehow works interesting to play. So he made a game for himself. This is kind of interesting. I like it. Yeah. I don't know that it really makes much of a difference for me. Yeah, I don't know. Again, it's just like kind of like visually stunning. You can see the the movement mechanics. So there there's definitely a lot of like processing under the hood that's happening here. Um I I don't know. Like it's it's hard it's hard to know like how impressed I should be with this stuff on on the very first

11:58day, you know? [laughter] All right. Final one. This is Turbo Kart. It's basically him recreating Mario Brothers. Single shot, about 15 minutes of work. And then And then I want to go into some of the issues that people have had with this and then I'll show mine. I will say like I've been I've been making games like this with my kids and and giving them a taste of like vibe coding like a you know, a first-time game with with with Claude. This was, you know, months ago. And it would do things like that and and try to create some some music, but it was just like

12:31very rudimentary like beats and stuff. That is like in the flavor of a of a Mario Kart game sounding music and the and the level of detail in the graphics. So again, like this stuff has always has has been pop- possible, but it's it's it's the details without needing to prompt for every little

12:49thing. Okay, here's what I'm going to do with this actually. My kids have an issue where they they're getting the my friend and I versus me and my friend use wrong. And so I created a game for them where they're asked the question and they have to answer it. I think what I'll do is if they get five of them right, they get to play Mario Kart like this or

13:09Right, if they get 10 of them right. Okay. Let's go on and talk about a couple of issues that people have found with it and how to get around them. This one's a big one. It's come up with a lot of people. Don't think it's that good for that. I mean, it's very slow. It's very

13:21expensive. It's extremely token hungry. One thing that's a sort of a pro tip that's not intuitive for this model is you can set it to lower reasoning levels like you know instead of max or extra high you can put it to a medium or low for more basic questions. That's not something that was very intuitive to me but that's how people inside of I didn't notice that either and you know what and I had a friend Josh who I'd interviewed before here who asked for one request and it burned through all his tokens in the $200 a month plan. So that's actually helpful to be able to

13:51shift over into into the easier version of it and then here's another set of tips. And this is something that I did do. into some usage tips here. So the first one is to treat this thing as a thought partner. This thing is really smart and involving it in your planning and your ideation is a really good idea. But you want to take that with a grain of salt. Don't just use it as a thought partner and say okay, how would I do

14:15this? It gives you an answer and you say okay, go. Let's do it. Use it as a thought partner meaning brainstorm with it and make it play devil's advocate and you play devil's advocate. That I didn't do. I did say ask me questions. I didn't ask the devil's advocate to sharpen my thinking on it. Yeah, actually that that's another area where I will start to pay attention to like how much better is this cuz the thought partner thing is something that I've been using AI and Claude specifically for for a really long time like well over a year

14:43on a regular basis almost a daily basis. I am having a voice note conversation strategic planning strategic coaching conversation with Claude and how I would evaluate it as as he's saying is um how does it how does it help me change my thinking on on a decision or on a strategy, you know, um rather than just kind of

15:07regurgitate back to me what I'm saying. But in general because it can build so much and it does take a while to work, it is better to have it think with you before you build it. So that you know, it's going in the right direction and not just going in the magical direction. The the ask clarifying questions that's

15:22another really really strong pattern. I've been using it I think a lot of builders have been using it for a while. You know, when you're creating a a PRD or a spec, I'll give it like the raw requirements or my raw goals, ask me clar- like literally I type in ask me clarifying questions on almost everything or or or or another one I like is like let me know whatever I may have missed here or what I'm overlooking or what the

15:49gaps are, you know? So that I told you guys you can get in there. And the Grill Me skill was originally from Matt Pocock, so shout out to Matt. But I changed it up a little bit so that it has like brainstorm docs. So, if I come in here and I go to my brainstorm folder, which is right here, which will automatically get created if you use my skill. I've got different sessions where it's grilled me relentlessly for I'm talking like 15 questions, 25 questions, 30 questions, and it's extracted so much more

16:15knowledge out of my head into my AI OS. So, that's a really great way to start off, too. You can literally set up your AI OS and say, "Use the Grill Me skill to figure out I find that that's incredibly helpful that I want you to make me think about it so that I I think of things that I didn't imagine that I might want in this

16:33tool. relationship map. Claude, the most important is to to verify its own work. You'll notice if I go into Claude and I go to this session where I prompted it to build this, you know, this relationship map thing. At the end of my prompt here, I said I gave it some context. I said, "This is a demonstration for YouTube, so don't feel the need to make this production ready, but it should be easy to understand, so don't make it confusing. That's not even what I meant to show you guys. I meant to show you guys this. And then, once you have built that, use a dynamic

16:59workflow to verify that everything is accurate and works as expected." I I wonder if I need to do that. I think I can test. I don't know that it's important for all of the things that I do, but I guess for what he's doing is he's basically building a second brain using using Fable, and so he would want it to

17:17be tested a few times. Yeah, the verification thing is coming up a lot, especially this week, but it's it's been a topic this year. Uh if you're going to have these models, which are much more capable now of these long-running deep tasks, like go build something big, and I'm going to walk away for 3 hours and expect it to be

17:34done. The way to make that work is giving it really strong verification criteria, saying like it's done when these things are true. I see. And these are These are hard checks that like you're not done until you can absolutely confirm with screenshots, with, you know, tests written, with whatever it might be. Okay, you know what? Let me show what I built here. After I saw all these, I got inspired. I love to take screenshots and mark them up. I use so many different tools, but none has felt great. So, here, watch. I'm going to take a

18:07screenshot of this. And I'm going to go into an app that I do like. It's called New Markup, uh or Markup Hero. I'm going to hit command V. I paste it in there. And then this is someone else's site. It's nice. And then I could, you know, mark it up. I could add arrows, and so on. But it doesn't have everything that

18:26I like in it, so I built my own. Oh, wow. Super easy. Look, immediately when I click mine, it automatically pastes it. I don't even like the waste of time to hit command V. I'm coming in here and hitting the bookmark, and so I wanted immediately to come in, and then I have only the tools that I care about. I can draw on the screen, circle, I can have an arrow go up. I can actually thicken up the arrow like this. And then I could either hit this button to copy, or I could hit command shift C to copy, and I do this so many times. It's one of my

18:56bookmarks on every single device. And it only has now the features that I care about. It's named Andrew's Markup. In here, let me show you how I did it. Cuz I kind of did some of what Nate was talking about. Here, I use VS Code to access Claude. So, I'll show you my can CleanShot for the for the screenshotting. And too, but I do not like having it on my computer because it's just another thing that uses resources and I just don't like that. So, here, I opened up uh Claude in here and I said, "What model are you using?" It said, "I'm using Opus 48." I said, "Switch to Fable." It said,

19:28"I can't switch to Fable, but you can. Just do this, command model and select Fable 5." So, I did. And then I said, "Okay, look." I pasted the link. I said, "I want you to copy this site and put my cloud and put it on my Cloudflare account. Interview me about it. Make sure that you've got the features that are important to me. Here's what I think is important." Obviously, I just talked into it, so I dictated all these features. And then it started to it started to interview me. The thing about interviewing though is it's mostly like uh what's it called? It's mostly multiple-choice questions, so it's

19:57fairly easy. And then once I had it, it said, "Now go over to Cloudflare, click this link to connect it, and there you got your link." And it freaking worked. Then I said, "Look." Again, I I really think that that interview me or ask me clarifying questions pattern is so important, especially for the builders out there

20:14who are just becoming builders, right? Like if you're if you're just running a business and now you're starting to like gain all these kind of superpowers to build any tool that you want. Um you know, the the way to shortcut the level of experience that a real software developer would have at this point you like you don't have to learn how to code. You don't have to learn how to wire up every piece of programming logic, but you do still need to make key decisions, right? Like I think it's easy to say like, "All right, I just I just let uh Fable run all day long and it built me

20:50some magical app." Like that's really cool, but does that app actually solve your problem in your business the way that you need it to be solved? Like Fable will could make those decisions for you or you can bake into it like what you actually need to build. And and and having it extract that out of you

21:08through through questions is is huge. Yeah, simple example for me was I didn't want like infinite color options. That's another distraction for me. I just wanted it to pick eight for me and that's fine and I wouldn't have thought to ask for that except it asked me the question. All right, I've got a link to all these videos below and if you're into Fable 5 Wade from Zapier, our sponsor, has tested Fable 5, run it over 600 tests against he did 600 tests on it and then he compared how Fable 5 responded to those tests versus how Opus 8, Opus 7,

21:40Gemini, and all these other platforms. There's a link right here for you to go follow and see it.