Anthropic · Claude
Claude Opus 4.5
ActiveRelease date TBDMultimodal model
The efficiency inflection point: 67% Opus price reset to $5/$25 with 76% fewer output tokens. 200K context (1M in beta). Still active as the most affordable/200K-context Opus fallback. Guide gives only month (Nov 2025) for release.
- API string
- claude-opus-4-5
- Context window
- 200K ctx
- Tier
- Flagship
Release & change timeline
No dated events logged for this version yet.
Patches, price changes, benchmarks, and deprecations for Claude Opus 4.5 will appear here as they’re recorded. Follow the broader Catch Me Up digest in the meantime.
Part of the Claude version timeline. Catch Me Up — everything that changed across AI & smart home ↗