AnthropicLaunchAI ModelsSeptember 22, 2026

Anthropic releases Claude Opus 5.5 with lower prices

Opus 5.5 costs $4/$20 per million input/output tokens, 20% less than Opus 5, with cache reads at $0.20/Mtok and 1M context. Anthropic says it matches Fable 5.1 on most work and is ~30% faster and ~40% cheaper per task than Opus 5.

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