Introducing Claude Opus 5.5

ClaudeNew modelConfirmed

Anthropic launches Claude Opus 5.5, alongside higher five-hour subscription limits and a rate-limit reset users can save for later.

Who can use it

Available across Claude platforms, AWS, Google Cloud and Azure. Higher five-hour limits cover Pro, Max, Team and seat-based Enterprise.

When

Announced September 22. The source gives a publication date, not an exact availability time.

Anthropic official announcement ↗Announced 2026-09-22 · date only

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