Claude Opus 5.5
The current Opus for long-running agentic coding and knowledge work, released 2026-09-22. It accepts text/images, returns text, and uses always-on adaptive thinking.
Listed as available by vendor
- Vendor
- Anthropic
- Modality
- textimagecode
- Directory associations
- 0
Sources and review scope
Official identity and task scope checked
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Checked:
Article updated:
- Claude Opus 5.5 overviewChecked: 2026-10-15
Directory matching names
These names match legacy directory records; they are not automatically official aliases or identical snapshots.
Claude Opus 5.5claude-opus-5-5
Related models
Other models from the same vendor or modality.
Claude Fable 5.1AnthropicOfficial identity and task scope checkedListed as available by vendorClaude Sonnet 5.5AnthropicOfficial identity and task scope checkedListed as available by vendorClaude Haiku 5.5AnthropicOfficial identity and task scope checkedListed as available by vendorClaude familyAnthropicOfficial identity and task scope checkedAvailability not confirmed