Claude Opus 4.5
The previous flagship from November 2025, a step change on long-horizon coding and multi-step agents and the coding benchmark before the Claude 5 generation.
- Vendor
- Anthropic
- Modality
- textcode
- Tools using this model
- 1
Aliases and versions
Claude Opus 4.5claude-opus-4-5
Version lineage
- Earlier models it replaced
- Claude 3 Opus
Used by these tools
Where it is used in this directory
Everything below is derived from tools already listed in this directory: 1 tools note Claude Opus 4.5, covering the media types, platforms, and output formats on this page. Check each tool's official documentation for capabilities and integration details.
- Media types covered
- 💻 Code Generation
- Platforms of the tools that use it
- DesktopCLIWeb
- Output formats of the tools that use it
- CodeMarkdown
Related models
Other models from the same vendor or modality.