Anthropic
Claude Opus 4
Closed SourceProprietary · 200K context window
Quick info
- Provider
- Anthropic
- License
- Proprietary
- Context window
- 200K
- Task type
- text-generation
- LM Arena votes
- 42,840
- Release date
- May 22, 2025
More models from this provider
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- claude-opus-5-max1,488
Description
Anthropic's flagship — top-tier reasoning, a 200K context window, and best-in-class results on agentic and coding workloads. The pick for deep-analysis work: research, large-codebase refactors, long-document synthesis.
LM Arena benchmarks
| Board | Score |
|---|---|
| Text | 1,414 |
| Vision | 1,189 |
Pricing (per 1M tokens)
- Input price
- $15/1M
- Output price
- $75/1M