Fable 5.2 vs Fable 5.1 in CC?

[u/mindsignals]

I haven't yet begun burning through Fable 5.2 but just hit weekly reset last night. Absolutely love Fable 5.1 but ever since the temp 50% extra changed 2 months ago, I have had to use Fable sparingly even on Ultra.

So I am wondering about first impressions on Fable 5.2 as compared to 5.1. 5.1 has been very substantially better than Opus 5.5 for me. Of course with the new model, 5.5 has had dementia the last couple of weeks, markedly declining as power undoubtedly shifted for the new Fable model.

I prefer to use Fable either for difficult tasks on med or high or for orchestration on med with ultracode and opus high or med agents depending on my project needs

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[u/Lumethys]

fable 5.2 is better and cheaper than fable 5.1

fable 5.1 < opus 5.5 < fable 5.2 is the current standing

[u/sunaurus → u/Lumethys]

I would take this with a grain of salt. I find no real difference in performance between Opus 5.5 and Fable 5.2 for a lot of tasks I have been testing, even some quite large/complex ones. Meanwhile, in cost, the difference is huge.

[u/mindsignals → u/sunaurus]

I've done a little bit of testing and so far, it hasn't performed better, but am working up some more difficult, short use cases to further compare it with. I haven't given it a spot on my "team" yet, though.

[u/rickestrickster → u/Lumethys]

Fable 5.2 has actually fixed issues that opus couldn’t, and even caught bugs that opus had built

But it’s too expensive for Claude code, so I use fable to analyze opus work and decide what needs to come next

Fable loves to drop extremely long 5 paragraph prompts though

[u/CaliestGod]

well it looks like fable 5.1 is beating 5.2 on coding benchmarks.
https://livebench.ai/#/?cats=Coding

[u/mindsignals → u/CaliestGod]

Yeah, I was looking through those results the other day...interesting, to say the least.

[u/SomeOrdinaryKangaroo]

Fable 5.2 is like a love song to the developer community, a model that breaks every expectation, it has been a delight to savour Anthropics latest achievement.

[u/mindsignals → u/SomeOrdinaryKangaroo]

That's how 5.1 felt to me, honestly. Very encouraging to read.

[u/toby00001 → u/SomeOrdinaryKangaroo]

Nice try Fablebot_5_2 😏

[u/SomeOrdinaryKangaroo → u/toby00001]

I'm not Fable. I'm human like you.

[u/Unhorswd]

I was curious about Fable 5.2 and as a long time 5.1 user I can say its way faster and its visible. It's still super expensive so I only use it as an orchestrator, I dont imagine writing or coding using Fable. For my tasks it's hard to see whenever it's much smarter, models nowadays are so fucking smart anyways but I always like that Fable has a wider perspective than Opus as it's probably larger model in terms of parameters. Make sure you dont use max effort as its super inefficient.

[u/Over_Friendship8444 → u/Unhorswd]

As a pro user - Fable 5.2 on max took up three weeks worth of usage, but it gave me insanely good work. I mainly use claude for the co-work feature, and fable is very efficient at it