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That’s Mythos. Fable isn’t specifically for that I don’t think, just an enhanced ability and persistence of Opus.
by solumunus 3mo ago
That’s Mythos. Fable isn’t specifically for that I don’t think, just an enhanced ability and persistence of Opus.
- matheusmoreira 3mo agoFable is itself a "Mythos class" model. It can do everything Mythos can do. Anthropic's classifier just doesn't allow it to do it.
- helloplanets 3mo agoDefinitely not just a classifier layered on top, although there is one of those as well. Pretty sure it's different post-training / finetune run and the model weights are different between them. Which is bound to have effects on the model output even in general use, although I'd imagine they have pretty stringent evals to make sure it doesn't regress too much in things they don't want to restrict.
- adastra22 3mo agoFable is consumer-branded Mythos.