ANTHROPIC 🔥: Fable 5.1 is now available on Claude and Claude Code.
It requires extra usage credits while priced the same as Fable 5, with 75% cheaper API cache reads.
Writes in plain language and sticks to what you asked for.
Creates finished spreadsheets and checks each number as it goes.
Shows its sources and separates what's known from what's estimated.
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 Ter...