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Claude Opus 4
About Claude Opus 4
Claude Opus 4 is an AI model developed by Anthropic, in the language category, released in 2025, made available as a proprietary (API-only) model.
On this page you'll find Claude Opus 4's full specifications, including 13 benchmark results. Review provider pricing and benchmark scores below, or compare Claude Opus 4 head-to-head with other language models.
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Claude Opus 4 benchmark scores▶
| Benchmark | Category | Score | Variant |
|---|---|---|---|
| BrowseComp | agentic | 18.8% | |
| TAU-bench Airline | agentic | 59.6% | |
| TAU-bench Retail | agentic | 81.4% | reported in GLM-4.5 paper |
| Terminal-Bench 2.0 | agentic | 43.2% | |
| LiveCodeBench | code | 63.6% | 2407-2501 |
| SWE-bench Verified | code | 67.8% | |
| SciCode | code | 39.8% | |
| MMLU-Pro | general | 87.3% | |
| AIME 2024 | math | 75.7% | |
| MATH-500 | math | 98.2% | |
| GPQA Diamond | reasoning | 79.6% | |
| Humanity's Last Exam | reasoning | 11.7% | |
| BFCL v3 | tool-use | 74.4% |
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Frequently asked questions
What is Claude Opus 4? ▶
Claude Opus 4 is an AI model developed by Anthropic, in the language category, released in 2025. It is tracked on GenAIList with its specifications, benchmark scores and provider pricing.
Who created Claude Opus 4? ▶
Claude Opus 4 was developed by Anthropic and released in 2025.
Is Claude Opus 4 open source or proprietary? ▶
Claude Opus 4 is a proprietary model. It is accessed through an API rather than by downloading the weights.
How much does Claude Opus 4 cost? ▶
Pricing for Claude Opus 4 depends on the provider. See the providers table on this page for the latest API rates.
How does Claude Opus 4 perform on benchmarks? ▶
Claude Opus 4 is benchmarked across 13 evaluations on GenAIList, including BrowseComp (18.8%). See the full benchmark table below and compare it with other models.
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