Update Anthropic · Released
Claude Opus 4.1
What is Claude Opus 4.1?
Claude Opus 4.1 is a Update AI model from Anthropic, released on July 15, 2025. It has a 200K tokens context window, costs $15.00 per million input tokens, and scores 91.2% on MMLU. It is available via the company's API.
Mid-2025 Opus refresh focused on agentic coding reliability.
Iterative improvement on Claude Opus 4 with enhanced multi-file refactoring
Key features
- Improved multi-file refactoring
- Enhanced agentic capabilities
- Better long-context performance
- Reduced hallucinations
How much does Claude Opus 4.1 cost?
| Metric | Price |
|---|---|
| input per mtok | $15.00 |
| output per mtok | $75.00 |
Pricing data verified .
What context window does Claude Opus 4.1 have?
- Context window
- 200K tokens
- Max output
- 32K
- Input modalities
- text, image, PDF
- Output modalities
- text
How does Claude Opus 4.1 score on benchmarks?
| Benchmark | Score |
|---|---|
| SWE-bench Verified | 74.5% |
| MMLU | 91.2% |
| GPQA Diamond | 79.1% |
Benchmark scores verified .