Post #9165
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π¨ AI News | TestingCatalog BREAKING π₯: 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 π

ANTHROPIC π₯: 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.
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.
- π 7
- β€ 5
















