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The Sol benchmarks show Fable has slightly lower performance compared to Mythos.

https://openai.com/index/previewing-gpt-5-6-sol/

I assume they did something to the model itself.

Either way, I do hope they lift those draconian bans. Using the model was a terrible experience because of the constant downgrades. I didn't manage to harden my own projects before Fable got banned.



The session reverts to opus if it trips a limiter. Is the benchmark detecting and correcting for that?


Only OpenAI would know that.




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