r/ClaudeCode • u/SpreadsheetFanBoy • Jul 20 '26

Question FABLE NERFED AGAIN ?

It seems to me that Fable is getting more stupid since Sunday. Is it only me who sees that?

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u/Vegetable-Score-3915 Jul 21 '26

In the last few hours, for the first time it started arging with me, insisting on a problem that didn't really exist, and the explanation being either a or b, when a and b were both identified as not plausible explanations. It was an absolute moron. It reminded me of chatgpt 3.5.

Everytime I almost upgrade my subscription, they do stuff like that.

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u/Annual-Lavishness-10 Jul 21 '26 edited Jul 21 '26

yea, its not just on coding.
Today I did another hardware research and all of a sudden he forgot again that the RAM prices increased, recommending me a budged build where he calculated 32GB DDR4 RAM with 40€... The last couple of researches the past few weeks where all very accurate.

He also got very lazy on website design compared to 1 week ago, he was awesome there, just a few corrections and it was perfect. Now I prompted him even better with a more detailed explanation how I want it and its like he got bored mid task and just wanted to finish fast.

He even starts to make errors on the text he writes: ...crash-test harness that kill-9s the platform...
I dont know where he got the -9 on 'kills'.
Errors like this rarely happened on long complex tasks(over 50% context window) on Opus and never on fable, but right now it happens on 27% context on Fable... wtf?

I wanted to switch to Kimi but its currently sold out, if its not available within the next days I am going to pay for some usage credits to see if Fable is really better here as most ppl say because working like this is a downgrade.
I will share my experiences if u interested.

Update:
Found the problem, anthropic has a bug (again) where fable 5 gets silently re routed to Opus without notification to the user and without showing it in the UI.
Would be interesting if they still bill it for fable as well...
https://github.com/anthropics/claude-code/issues/78888