8:54Claude Fable 5.1: Benchmarks, Cost, Safeguards
2 Sept 2026 · I went through every Claude Fable 5.1 benchmark. One number actually matters.
Every Fable 5.1 benchmark against Fable 5, Opus 5 and GPT-5.6 Sol, plus what the release does to token pricing and cache reads.
Open the reference




