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It crushes Fable on benchmarks and even in the blogs "real-world" studies. But... they are communicating like it ~sometimes~ provides Fable intelligence?

A bit confusing, otherwise I would assume this is a complete replacement for Fable across the board??

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What if the recent Fable intelligence regression was basically just them serving Opus 5.5 until they got it working well?

I have never been a part of the group that believes in frontier labs downgrading models. But this theory seems plausible to me for the first time.

I guarantee they are at least tweaking quants, caching systems, and finding ways to move serving costs down. This definitely impacts the model’s intelligence at times. There are also a lot of model tweaks, RLHF rollouts etc. I don’t think it means they are doing anything malicious or deceptive. And if Opus 5.5 is literally smarter than Fable? Ehh, it is plausible :)

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