A bug nobody could explain for five years
Claude fable 5.1 found it in one session Anthropic shipped Fable 5.1 and Mythos 5.1 today same model, different safeguards it leads on all 7 benchmarks tested - ahead of Fable 5, Opus 5, and GPT-5.6 Sol on every one:
Wake up babe ! Claude just dropped another update after longtime!!
Fable 5.1 just beat opus 5 🔥💀
BREAKING: Anthropic has officially launched Claude Fable 5.1.
Replaces Fable 5 requires usage credits on Pro apparently burns through credits faster than Opus 5
BREAKING: Anthropic just dropped Fable 5.1—and CLAUDE IS SO BACK.
We’ve spent the last week testing it at every across coding, writing, and knowledge work. Our verdict: It's finally Fable for everyone. It’s the strongest coding model we’ve used, but now it's fast,
You have reached the end of the archive
All of Claude Opus 5