Accessible catalog
Claude Opus 5.5
Anthropic · Claude
- Availability
- Publicly available
- Provider
- Anthropic
- Country
- USA
- Family
- Claude
- Status
- Current
- Weights
- Closed
- Release date
- 2026-09-22T00:00:00.000Z
- Modalities
- text (both)
- Input per million tokens
- 4 USD
- Output per million tokens
- 20 USD
- Price effective from
- 2026-10-06T00:00:00.000Z
- Knowledge cutoff
- 2026-06-01T00:00:00.000Z
Aliases
anthropic.claude-opus-5-5, claude-opus-5-5
Capabilities
- tool_use
- structured_output
- reasoning
Traits
- context_window1,000,000 tokens
- max_output_tokens128,000 tokens