About Claude Opus 4
Claude Opus 4 is benchmarked as the world’s best coding model, at time of release, bringing sustained performance on complex, long-running tasks and agent workflows. It sets new benchmarks in software engineering, achieving leading results on SWE-bench (72.5%) and Terminal-bench (43.2%). Opus 4 supports extended, agentic workflows, handling thousands of task steps continuously for hours without degradation.
Read more at the [blog post here](https://www.anthropic.com/news/claude-4)
Specifications
- Provider
- Anthropic
- Context Length
- 200,000 tokens
- Input Types
- image, text, file
- Output Types
- text
- Category
- Claude
- Added
- 5/22/2025
Comparison with Claude 3 Opus
| Specification | Claude 3 Opus Previous | Claude Opus 4 Current | Change |
|---|---|---|---|
| Context Window | 200K | 200K | |
| Reasoning Support | |||
| Input Types | text, image | image, text, file | |
| Output Types | text | text | |
| LMArena Score | 1322 | 1469 | |
| Input Price (per 1M) | $15.00 | $15.00 | |
| Output Price (per 1M) | $75.00 | $75.00 |
Frequently Asked Questions
Common questions about Claude Opus 4