Anthropic lowers prompt cache read price for Claude Sonnet 5.5
Anthropic reduced prompt cache read pricing on Claude Sonnet 5.5 to $0.10 USD per million tokens.
Models:Claude Sonnet 5.5
What changed
Anthropic reduced the price of prompt cache reads on Claude Sonnet 5.5 from $0.20 USD to $0.10 USD per million tokens. This drops the rate from 0.1x to 0.05x the base input price. Cache writes and all other prices remain unchanged.
What it means for Zabio customers
Claude Sonnet 5.5 is not currently available in the Zabio catalog. This price change applies directly when calling the model through Anthropic.
What Zabio does
Catalog change under review.
Source
We’ve lowered the price of prompt cache reads on Claude Sonnet 5.5 from $0.20 USD to $0.10 USD per million tokens: 0.05x the base input price instead of 0.1x.
Original announcement: Claude Platform release notes
Published automatically from the official announcement, minutes after it appeared. Reviewed by a person within the day.
Source: Claude Platform release notes (2026-10-07)