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Anthropic · Model release

Claude Sonnet 5.5 released

Anthropic's new mid-tier model, priced the same as Sonnet 5 and available on the Claude API, Amazon Bedrock, Google Cloud and Microsoft Foundry.

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Original sources

  1. Introducing Claude Sonnet 5.5 (opens in a new tab) ↗

    First-party source · Source checked

    Sonnet 5.5 is priced the same as Sonnet 5 at $2 per million input tokens, $10 per million output tokens, and $0.20 per million tokens for cache reads, but it typically needs far fewer tokens to do the same work.
  2. Model deprecations - Claude Platform Docs (opens in a new tab) ↗

    First-party source · Source checked

    claude-sonnet-5-5 Active N/A Not sooner than September 28, 2027
Recording provenance

First recorded by StackReplay . This is a discovery date, not the occurrence date.

Event ID: claude-sonnet-5-5-released

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