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Anthropic halves Sonnet 5.5 cache-read pricing

Anthropic lowered Claude Sonnet 5.5 cache reads from $0.20 to $0.10 per million tokens while its $2 input and $10 output rates remain the same. Teams that reuse long prompts may pay less; Anthropic’s roughly 20% agent-work saving is a workload-dependent company estimate, not a guaranteed bill reduction.

Anthropic

Claude Sonnet 5.5 cache reads

Pricing & Access

Published (date only)

Updated

2 sources

Primary source · October 7, 2026

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