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.
- Occurrence
- Occurrence date basis
- Provider publication date
- Status recorded with this event
- available
- Event checked
Original sources
- 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.
- 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

