/AI3h ago

Fable AI Model Delivers Incremental Gains Over GPT-5.5

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Original postkache#488
antirez@antirez

While Fable is an amazing model, don't get too excited: it is great, but still has the usual failure models of the other good LLMs we saw in the past, including GPT 5.5. If you look at Anthropic, Opus -> Fable was a huge jump. If you look at the field, GPT 5.5 -> Fable is incremental.

7:06 AM · Jun 10, 2026 · 43.9K Views
Sentiment

Positive users praise Fable for major gains in data analysis and personal use over GPT-5.5, while negative users dismiss the improvements as incremental PR stunts with the same failures and rising token costs.

Pos
40.0%
Neg
60.0%
20 comments with sentiment.
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VIEWS2.3KLIKES38REPLIES4

@antirez I find Fable impressive but entirely non enjoyable. It feels like talking to gpt 5 pro. Non interactive and super slow. Probably for people who are running things without being in the loop this works.

3hViews 2.3KLikes 38Bookmarks 1
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antirez@antirez

I bet right now the maximum you can achieve in the field of software development is to use GPT 5.5 *and* Fable in a combination, cross-review cross-design style. The way I used Opus/GPT when they had similar performances a few months ago.

3hViews 1.5KLikes 29Bookmarks 1
antirez@antirez

@mitsuhiko Yes basically it does not care about you writing while it works. Looks non-steerable in interactive way in the same way GPT 5.5 is. It's complicated to work like that, especially since right now models are not at a "work alone" level for many tasks.

3hViews 1.1KLikes 9Bookmarks 1
antirez@antirez

@TechMDAI I believe the security thing is not a stunt. GPT 5.5 already uncovered tons of bugs and created a lot of issues in the security community.

3hViews 1.2KLikes 5
Precious Balogun@PreciousBa82157

@antirez IDK fable has been really wonderful for me, iterally making me rethink my decision of being an engineer lmao

3hViews 567Likes 5
TechMD@TechMDAI

@antirez I totally agree. Its very PR Stunt. The models is held back from the real work or is it really

3hViews 1.2KLikes 1
Ryan X. Charles@rxcblockchain

@antirez they nerfed it though. it thinks everything i'm doing is cybersecurity and/or biology (even though it isn't) and falls back to opus 4.8. this is not really a new model release at all if you can't actually use it.

3hViews 266

@antirez I don't think it's isolated at all, but I would bet that we have a k shaped community of people that steer vs people that loop. And the loopers are using more tokens :)

2hViews 308Likes 3
Sav Tripodi@savtrip_dev

@antirez salvatore, una curiosità, che ne pensi dei modelli open, tipo deepseek v4 pro, rispetto a gpt e fable? Secondo te non sono abbastanza buoni? Per me, deepseek v4 pro funziona benissimo nella maggior parte dei casi (con il prompt/harness/setup giusto).

1hViews 62

@antirez Do you think GTP 6 will be the next model ?

3hViews 605Likes 2

It literally told me something like this

"CLANG is not installed on this machine, so i am documenting this in PR body, can't fully test the output"

I was like wtf bro, there is clang installed, test properly and then open PR. It was like Ooooh yeah you are ABSOLUTELY RIGHT

So its same as any other model of clankers

3hViews 416Likes 2
Jacob Gadikian@Senpai_Gideon

@antirez @yacineMTB As someone who does Blockchain and security work, fable is the worst model of all time.

2hViews 296Likes 2
Roy@__roycohen

@antirez Do you think Deepseek could handle doing tasks delegated to it by plans created by 5.5/Fable? Ie, several tasks with documented outcomes/requirements.

1hViews 24
antirez@antirez

@mitsuhiko Btw impressed by the fact that in the YouTube video I published today morning about Fable I lamented the non-steerability of the model and now you say this. So this must not be isolated feeling but most folks are facing this issue right now I bet.

3hViews 203Likes 2
Mr. John Smith@MrJ0hnSmith

@antirez @yacineMTB Hoping to have 5.6 soon enough so i don’t have uncancel my unthropic sub for a month

2hViews 164Likes 1
i miss the sun@1_missthesun

@antirez I think you need to do wider range of tasks before presuming 5.5 to fable is incremental. It most definitely is not.

2hViews 444
zakk@hexednobility

@antirez Yeah, it’s still an LLM. Same rules still apply

e.g., what I wrote about here

3hViews 390
Ken Navarro@ken100bands

@antirez more gpt shill

3hViews 291
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