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Claude Fable 5: mid-tier results on coding tasks

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Re: Claude Fable 5: mid-tier results on coding tasks

#171

Earlier quoted context omitted.

That's what people told Ignaz Semmelweis, too, I assume. "Nothing you can do, the powers that be decided, you are a minority, you don't matter, lol!" Snickering in the shadow of what they won't confront at those who do.

Well, perhaps we will be sent similarly to asylums for "anti-AI psychosis"

[deleted]

Re: Claude Fable 5: mid-tier results on coding tasks

#172
post #9

This matches my experience. Burned $2K to see how it will perform on frontend tasks and backend tasks. Frontend did a significantly better job than Opus on toy-scale wireframe projects by using gimmicks like fluid dynamics. Then when given medium to big tasks like multi-page web app where layouts and aesthetics must be decided by model itself, results by Fable and Opus scored indistinguishable score from human judges…

> Burned $2K to see how it will perform on frontend tasks and backend tasks

Burned $2K on some kind of enterprise account or ... ? Why not just get a $200 Max Pro account?

While I'm loving the output of Fable 5, I will *never* pay the "normal" API token price for it. You can reach $2K in a stupidly fast amount of time.

Re: Claude Fable 5: mid-tier results on coding tasks

#173
post #9

This matches my experience. Burned $2K to see how it will perform on frontend tasks and backend tasks. Frontend did a significantly better job than Opus on toy-scale wireframe projects by using gimmicks like fluid dynamics. Then when given medium to big tasks like multi-page web app where layouts and aesthetics must be decided by model itself, results by Fable and Opus scored indistinguishable score from human judges…

Curious:

>Burned $2K

In which time was this burned, because it sounds like "I gave it just a bunch of menial tasks to solve" - or did it run for like 1 complete day continuously?

Re: Claude Fable 5: mid-tier results on coding tasks

#174
post #170

Earlier quoted context omitted.

You're in the massively subsidized camp. They're going to move Fable off of the subscription tiers to API-only. $10 per million tokens in and $50 per million tokens will get expensive quickly; considering it burns through thousands of tokens thinking itself in circles with no way to follow along.

> They're going to move Fable off of the subscription tiers to API-only. Is this official? When?

June 22

Re: Claude Fable 5: mid-tier results on coding tasks

#175

I have no idea how people are burning $2k. I pay $100/mo and it's built an absolute crap ton of stuff for me. And my co-founder uses it 24/7 as well. Maybe we spend too much time actually reading the code (risk or benefit? you decide). Or maybe I'm in the "massively subsidized" camp and the investors are about to go for our jugular. But $2k for a single project is several orders of magnitude more than I am currently…

Ultracode

Re: Claude Fable 5: mid-tier results on coding tasks

#176
post #172
post #9

This matches my experience. Burned $2K to see how it will perform on frontend tasks and backend tasks. Frontend did a significantly better job than Opus on toy-scale wireframe projects by using gimmicks like fluid dynamics. Then when given medium to big tasks like multi-page web app where layouts and aesthetics must be decided by model itself, results by Fable and Opus scored indistinguishable score from human judges…

> Burned $2K to see how it will perform on frontend tasks and backend tasks Burned $2K on some kind of enterprise account or ... ? Why not just get a $200 Max Pro account? While I'm loving the output of Fable 5, I will *never* pay the "normal" API token price for it. You can reach $2K in a stupidly fast amount of time.

> I will never pay the "normal" API token price for it.

Not until June 22 you won't!

Re: Claude Fable 5: mid-tier results on coding tasks

#177
This demonstration is the clearest I've seen so far, showing the gulf between Opus and Fable for app creation:

https://www.youtube.com/watch?v=TzJCly4YgDQ

The Age of Empires clone (and the difference in graphics quality/creativity between Opus and Fable) is at the end of the video and I was blown away.

Notice how this guy prompts the models. Very detailed, with technical requirements and steering. He's going for a one-shot build and he nailed it.

Re: Claude Fable 5: mid-tier results on coding tasks

#178
post #26

I've been making an auction site and have been using an AI swarm to test it: sellers, intermediaries, buyers, market practices/norms etc. I was mostly using GPT 5.5 xhigh to code up the scenario, and looping over it to check with opus 4.8. Out of curiosity I asked Fable to review it all and I was shocked to find that there were a lot of blindingly obvious common sense mistakes that got through, for example: - all int…

Unless you're coming up with a deterministic set of criteria for evaluating these bugs and issues, every single model is going to keep telling you it finds new things and to fix them.

I'm sure you said the same "find mistakes please" thing to Opus 4.8 and GPT 5.5 when you were using $previous_amazing_latest_model, and they also found and fixed them.

Once the next "Fable"-type model comes out I'm sure it's going to find even more mistakes that the "special" Fable made.

You're using these models to make mistakes and then using upgraded versions of them to find their previous mistakes and fix them, until a new version comes along that can magically fix even more mistakes their previous versions made. There's no end to it.

Re: Claude Fable 5: mid-tier results on coding tasks

#179

Earlier quoted context omitted.

A single 8h task? I'm sorry, but that's just asking for trouble.

I don't understand how some of y'all use these things. I get garbage unless I give them very specific concrete tasks with as much context as possible. Anything that takes more than 30 min is usually a waste because the scope was too large.

If you're giving it 8 hours of stuff to create with a template (e.g. slop forking) that's not a big deal. Letting it run for 8 hours to debug a weird failure also tends to work out.

Re: Claude Fable 5: mid-tier results on coding tasks

#180
post #130

Earlier quoted context omitted.

Fable is a lot like Opus at its best. It's simply more reliable and feels a bit smarter. For my use cases, using it feels very nice , and notably better than Opus. It needs less direct guidance to get reasonable looking code and I don't have to watch it as closely. For context, my Claude Code working style is quite heavy on discussion "to align" before implementing anything. We also use a good amount of Markdowns. Oh…

I've had Fable add Chinese characters to our conversation for no reason.

I've only had that happen with Chinese models until now. Interesting that Fable is doing it too.
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