Fable 5 is a Mythos-class model made safe for general release — the most capable model Anthropic has ever made generally available, state-of-the-art on nearly all tested benchmarks, and the gap over other models *widens* as tasks get longer and harder. It's priced like it: 2x Opus 5, 3x+ Sonnet 5 per token. So the operating principle is simple: **Fable is the architect, not the workhorse.** Spend it on judgment — plans, briefs, evaluation, verification. Let cheaper models do the typing.
