2
Anthropic halves Claude Sonnet 5.5 prompt cache read price
2026-10-07
Anthropic lowered the price of prompt cache reads on Claude Sonnet 5.5 from $0.20 to $0.10 per million tokens (0.05x the base input price instead of 0.1x), effective October 7, 2026. Cache writes and all other prices are unchanged.
Significance 2: A targeted price cut on one cost component for one model, not a base-price change — below the flagship-wide threshold for a level-4 pricing event.
financial Pricing change
Sources
- primary Claude Platform release notes retrieved 2026-10-07