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Claude Opus 4
Flagship Claude model for deep reasoning, coding, and long-horizon agents
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Claude Opus 4 FAQ
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Model family
Claude
-
Focus areas
AI safetyGeneral-purpose models
Core specifications
Released
2025-05-22
Context window
200K
Max output
32K
Weights
Closed
Modalities
Input
DocumentImageText
Output
Text
Identity
- Version
- claude-opus-4-20250514
- Knowledge cutoff
- 2025-03-31
- Aliases
- Claude Opus 4, Claude Opus 4 (latest)
Capabilities
AttachmentsReasoningTemperatureTool call
Capabilities and fit
Model summary
Flagship Claude model for deep reasoning, coding, and long-horizon agents
Text
AttachmentsReasoningTemperatureTool call
- Output
- Text
- Capabilities
- 4
- Catalog updated
- 2026-08-06T01:08:55.624Z
- Status
- Retired
Benchmark results
| Benchmark | Type | Score / rank | Evaluated |
|---|---|---|---|
| Aider Polyglot | Coding | 72 | 2025-05-25T00:00:00.000Z |
| Aider Polyglot | Coding | 72 | 2025-05-25T00:00:00.000Z |