Claude Sonnet 5.5
The current Sonnet, released 2026-09-28, balances speed and capability with vision, tool use, and adaptive thinking. Existing Sonnet 5 integrations need a migration review.
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 Sonnet 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 Sonnet 5.5claude-sonnet-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 Opus 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