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Episode 60 · July 2, 2026 · 09:59

Claude Fable 5 is back!



Claude Fable 5 Is Back: 42 Builds, Real-World Tests, Limits, and Better Alternatives

The script reviews Claude’s Fable 5 after its return, showing results from 42 builds and how to access it by selecting Fable 5 in Claude’s model list. It notes Fable 5 is included in a subscription only until July 7, after which it may require extra paid credits, and it sometimes auto-switches to Opus 4.8—especially on science-related prompts. The creator demonstrates strong coding and project-building speed (including a web “operating system”) but highlights weaknesses such as poor web UI output, buggy first builds, and inconsistent instruction-following compared with a custom-trained Opus 4.8. Side-by-side tests show panel approaches (Hermes Mixture of Agents, Fusion, Sakana Fugu) can outperform Fable 5 on some games and simulations, and the video promotes access to these systems and tutorials via the AI Profit Boardroom community.

00:00 Fable 5 Returns
00:32 Access and Pricing Window
01:15 Showcase Web OS Build
01:38 Panels vs One Shot Tools
02:08 UI Weaknesses and Bugs
03:15 Tutorial Skill Compliance
04:33 Backlash and Model Switching
05:31 Side by Side Build Tests
08:07 Alternatives and Benchmarks
08:41 Community and Training Offer
09:52 Wrap Up and Links

Full transcript

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've 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 things 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 will 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 gonna happen after that.

Maybe 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 I'll 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 live in kind of like Windows where we can use these different apps. We can test them out.

We've got the Terminal. We've got 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 Mixture 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 out side by side. So if we go over to Fable 5 here, and we check out the landing page that we've 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 like 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 gonna 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're just skipping all the rules that we put in place to avoid skipping them. Makes sense. So there's some things where I'm like, wow, 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. So it's not a big deal if Fable 5 goes away.

The other thing I wonder as well, and I've seen this from some of the tweets online, is that a lot of people are kind of frustrated with it. So you can see, for example, this is trending on X right now and it says, Anthropix, Fable model faces backlash over the blogs and everything else it's got as well. So here's another problem that it has is it automatically switches to Opus 4.8 sometimes, which means you're in the middle of a chat, you're trying to use Fable 5, trying to use the best model out there, but then it struggles or it triggers something that it doesn't like and then it automatically switches to Opus 4.8. Also, anything science related will just switch back to Opus 4.8 as well.

So it's great that Fable 5 is back. It doesn't feel as powerful as it was before. I just feel like maybe some things have changed on it, maybe some settings have changed on it. It just doesn't seem to build as well in the same way.

So let me show you some more examples. So we've got some side-by-side tests here of mixture of agents versus Fable 5. If we have a look at this Neon City one, this is quite cool for mixture of agents. If we have a look at the output from Fable 5, to be fair, that is a lot better, right?

It looks a lot cooler, it's 3D, et cetera. More fun to use. If we have a look at some other stuff though, for example, like this one is a pool simulator. It just doesn't seem to work as well, right?

Like it doesn't show the pool queue. Seems super buggy to use. Doesn't quite work as well. If we have a look at the mixture of agents version, this is way nicer and you can actually see the pool queue and everything else.

So it's not always the case that Fable 5 is going to give you the best outputs out of everything available right there. And then also the other thing I would say here is like, when we were using mixture of agents, these tests were from last week. So when we use that system, we were using Fable 5, sorry, Opus 4.8 and GPT 5.5 together. And they tended to get better results for some tests than Fable 5, which is mind blowing in itself.

So here's another example, kind of like a RPG style game. This is from mixture of agents. And then we've got this version from Fable 5 and it doesn't really work, right? There's no main character, it's difficult to control.

There's nothing really going on here. The output from mixture of agents is way more interesting than actually better. And again, like we tested this kind of Skyrim style game. So this is the intro window from mixture of agents.

It looks really cool, super nice, very smooth when you use it, et cetera. Pretty amazing. If we have a look at the version from Fable 5, doesn't quite look and feel as nice, feels a little bit slower. I would say mixture of agents did a better job again.

So it's very interesting to see like these panel models outperforming Fable 5 on some tests. It's also not great at following instructions from what I've seen with Fable 5. It can switch to Opus 4.8 sometimes as well. And also it's not available on the subscription for too long.

So it's great, it can build some awesome stuff. Probably what is the most powerful standalone model, but I would definitely try panels. I think like you might get better outputs for this. I've been impressed with some of the stuff it's built, like it's pretty cool.

It's just maybe not as good as we were hoping. And I wonder if as well, something happened to Fable 5 between when it got taken down and when it's come back up, that's just made it not as effective in terms of maybe some of the safeguards that we'll put on or that sort of thing. Now, some people say, can you use a cheap alternative, like for example, GLM 5.2. GLM 5.2 is more comparable to Opus 4.8.

It's not going to give you the same outputs as something like Fable 5, but if you used it as a fusion, whether that was with Fusion directly or Sakana Fugu, which works in the same way, or for example, even using Hermes Mixture of Agents, I think you could get outputs that were not too far away from that. So it's worth testing. And I think Hermes Bench is going to be released soon, which tests combinations of models and whether they can outperform Fable 5 or Opus 4.8 on benchmarks too. So that'll be fun.

So if you want to get this full system with Hermes Mixture of Agents, Fusion, Sakana Fugu, you can see that we've built loads of stuff with Fable 5 inside here too. You can get that inside the AI Profitable Boarding. Link in the comments description or go to the AIprofitableboarding.com. This is my community.

There'll be save time and scale with AI automation. Inside the community as well, you can ask questions and I answer them with video tutorials daily. You can also go inside the classroom, get access to all of our best trainings. We have loads of trainings on Fable 5 itself, as you can see.

So we have called Fable 5 with a full video tutorial, a step-by-step guide, and 100 prompts, and also a 30-day roadmap for implementing it. Also, if you're interested in stuff like Fusion or Hermes Mixture of Agents as an alternative or Sakana Fugu, which are all alternatives, then you can get that inside here as well. So we have video tutorials covering each of them, how to use them, and how to use them inside our agent operating system. So if you want to get the video tutorial for the agent OS, you can get it here.

We've got the last update date. There's a full guide on this, plus you can get the C file to install it. You can also jump on four weekly coaching calls to get help and support in real time, share your screen, ask questions, et cetera. And then also inside the map, you can meet people in your local area who are building with stuff like Fable 5 and Hermes and everything else.

So feel free to get that link in the comments description or just go to the AIProfitBoardroom.com.

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