Claude Opus 4.1
Anthropic released 2025-08-05
$30.00 per million tokens, balanced
No independent quality score.
No benchmark we track has measured this model. That is not the same as measuring it and finding it wanting — we simply cannot rank it, so we do not.
Every price dimension
| Input | $15.00/M |
|---|---|
| Output | $75.00/M |
| Cached input | $1.50/M |
| Cache write | $18.75/M |
| Cache write 1h | $30.00/M |
| Web search | $0.01/call |
Independent scores
No independent benchmark has measured this model.
Best rankings by task
- asciiart #22of 83 1194
- svg #33of 98 1193
Capability
| Context window | 200K |
|---|---|
| Max output | 32K |
| Input modes | image, text, file |
| Tool use | yes |
| Reasoning | optional |
| Knowledge cutoff | 2025-01-31 |
Provenance
| Price source | openrouter.ai |
|---|---|
| Fetched | 2026-08-24 |
| Quality data | unrated |
Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains...