Anthropic: Claude Opus 4.6
Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks. It is built for agents that operate across entire workflows rather than single prompts, making it especially effective...
Everything else
| Max output | 128K |
|---|---|
| Input / 1M | $5 |
| Output / 1M | $25 |
| Cache read / 1M | $0.5 |
| Cache write / 1M | $6.25 |
| 1M in + 1M out | $30 |
| Takes | text, image, file |
| Returns | text |
| Tools | yes |
| Reasoning | optional · max, high, medium, low |
| Open weights | no |
| Released | 2026-02-04 |
| Knowledge cutoff | — |
| Retires | — |
| Catalog id | anthropic/claude-opus-4.6 |
Benchmarks
| source | epoch |
|---|---|
| eci | 155.37 |
| confidence | Likely |
| accessibility | API access |
| gpqa | 0.905 |
| gpqaStderr | 0.0169 |
| sweBenchVerified | 0.787 |
| sweBenchVerifiedStderr | 0.0186 |
| frontierMath | 0.407 |
| frontierMathStderr | 0.029 |
| aime | 0.944 |
| aimeStderr | 0.0282 |
| simpleQA | 0.465 |
| simpleQAStderr | 0.0158 |
Benchmark scores by Epoch AI, CC BY 4.0.
Using it
In 00, this model is picked per agent — and per tier, so the model that answers your customers need not be the one that writes your code. Get 00.