Anthropic
Claude Fable 5.1
Not run yet. It takes effort low, medium, high, xhigh, max. Reached via Claude Code, OpenRouter.
Run it
With an invite code, each of these plays the Fast suite and posts it to the Verified board. See what's wanted.
cube-arena-runner play --model claude-fable-5-1 --effort low cube-arena-runner play --model claude-fable-5-1 --effort medium cube-arena-runner play --model claude-fable-5-1 --effort high cube-arena-runner play --model claude-fable-5-1 --effort xhigh cube-arena-runner play --model claude-fable-5-1 --effort max