BREAKING 🔥: Anthropic has announced Claude Fable 5.1 and Claude Mythos 5.1!
It scores 52.6% on Terminal-Bench-Science 0.1, more than double Fable 5.
On Terminal-Bench 4.0, it scores 55.8% against 42.0% for Fable 5.
Rolling out on Claude now 👀
We’re introducing Claude Fable 5.1 and Claude Mythos 5.1. They're the world’s most advanced models for coding and knowledge work.