Claude Fable 5 is back!

**Julian Goldie** (0:00)
So I've actually built out 42 different things with Fable 5 Fable 5 just came back a few hours ago, and I'm gonna show you exactly what we built, how it performs, what I think of it so far, what the feedback has been like, et cetera. So here's an example of a creation we actually made with Fable 5, as you can see right here. It can create some pretty good stuff. It's pretty solid on building things out, which is great. Now, if you're wondering, okay, how should you use it? What's the best thing for using it for? Let me cover that as well in a second. And also how to get access to it. So if you're wondering how to get access to it, it's pretty simple. All you do is you go over to Claude like so, and then you can select Fable 5 inside the model list. Now, a couple of things to note here is that number one, Fable 5 is only included in your subscription until the 7th of July. After that, it would be based on paid extra credits, which means that you might as well make the most of it for the next seven days. And then who knows what's going to happen after that. Maybe the, you know, it's only available on outside of the subscription with Claude, and therefore you can't get as much access to it. Now, the other thing that I've noticed as well recently is that you can get some pretty similar outputs with other models, which will come on to in a second. But it does create some cool stuff, as you can see right here. We also, for example, built out this web operating system and it created a nice system here where we basically have a complete OS, living kind of like Windows, where we can use these different apps. We can test them out. We've got the terminal, we've got the notes app, we have Paint over here as well. So you can create some pretty amazing stuff. And also it's a lot faster than using some of the alternatives that you have right now. So for example, one alternative to Claude Fable 5 is that you could use Hermes Mitter of Agents. If you're not sure what that is, that's basically a panel of agents, a panel of models that work together, like for example, Claude Opus 4.8 and GPT 5.5. You can ask the panel anything, and then you can get your outputs back here. But the thing is, these are just kind of like one shot. You give the panel a prompt, you come back in 10 minutes, and you can't really go back and forth in the same way. Whereas for example, Fable 5 is a lot faster to use. Now, there are some things that I've seen it fall down on. So if you're thinking about using Fable 5 for web UI, it's not particularly great at that. So let me show you some of the other creations that we've done. If we go to Goldie bench here, we've tested all the models outside by side. So if we go over to Fable 5 here, and we check out the landing page that we built, it looks pretty basic, that is pretty bad. So it's not great at everything. It can create some amazing things. It's very good at coding out different projects, vibe coding, cool stuff, but it's not amazing at UI. Now, what I'd recommend is that you teach Claude or whatever you're using a skill for UI, but we already did that and still we didn't get great output. So it's something to bear in mind there too.
Also, it can be buggy first time round. So some of these builds, for example, didn't work first time round. If we have a look at this game, for example, it didn't work first time round. Then we've rebuilt it right here and actually looked a lot nicer on the second build. But something to bear in mind as well is like, it's not going to build out perfectly. It still takes a lot of back and forth. You still have to guide it in the right way. And even for example, when I'm creating like tutorials or blog posts and that sort of thing, from what I've seen in Fable 5, it still struggles at times to get everything right. And it kind of, it's interesting because like I've custom trained Opus 4.8 with a skill for creating guides and tutorials.
And Opus seems to stick more closely to the rules than, for example, if we're using something like Fable 5 So, for example, we actually asked Fable 5 with a custom skill to create diagrams inside its tutorials. And it's the same skill that Opus 4.8 uses. Opus 4.8 seems to do that first time round. But you can see here, for example, the Fable 5 struggles at times. So it says like, fair catch on both counts. I use the guide skill structure, but I skipped the rule that you have inside your guide. I'm like, wow, okay. So you just skip in all the rules that we put in place to avoid skipping them. Makes sense. So there's some things where I'm like, well, okay, Fable 5 is great. And there's other things where I'm like, you know what, if I can't use it on the subscription, it's not a big deal. We've got a mixture of agents, we've got Fusion, we've got Sakana Fugu, which are all panel alternatives where you can get agents to work together and then you fuse the best answers.