https://tokencost.app/blog/claude-fable-5-1-cache-read-price-cut TokenCost en 2026-09-02T00:00:00.000Z Claude Fable 5.1 charges what Fable 5 charged on every line of the rate card except one. That one is the cache read, and it is the first time Anthropic has priced a cache hit at anything other than a tenth of input.