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Claude Sonnet 4
About Claude Sonnet 4
Claude Sonnet 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 Sonnet 4's full specifications, including 17 benchmark results. Review provider pricing and benchmark scores below, or compare Claude Sonnet 4 head-to-head with other language models.
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Claude Sonnet 4 benchmark scores▶
| Benchmark | Category | Score | Variant |
|---|---|---|---|
| BrowseComp | agentic | 14.7% | |
| BrowseComp | agentic | 12.2% | react-cited-tongyi |
| BrowseComp-Zh | agentic | 29.1 | react-cited-tongyi |
| GAIA | agentic | 68.3 | react-cited-tongyi |
| TAU-bench Airline | agentic | 60% | |
| TAU-bench Retail | agentic | 80.5% | reported in GLM-4.5 paper |
| Terminal-Bench 2.0 | agentic | 35.5% | |
| WebWalkerQA | agentic | 61.7 | react-cited-tongyi |
| xbench-DeepSearch | agentic | 65 | react-cited-tongyi |
| SWE-bench Verified | code | 70.4% | |
| IFEval | general | 88.7% | |
| MMLU | general | 91.9% | |
| MultiChallenge | general | 55.3% | |
| Frames | long-context | 80.7 | react-cited-tongyi |
| Humanity's Last Exam | reasoning | 20.3% | react-cited-tongyi |
| SimpleQA | safety | 18.5% | |
| BFCL v3 | tool-use | 75.2% |
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Frequently asked questions
What is Claude Sonnet 4? ▶
Claude Sonnet 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 Sonnet 4? ▶
Claude Sonnet 4 was developed by Anthropic and released in 2025.
Is Claude Sonnet 4 open source or proprietary? ▶
Claude Sonnet 4 is a proprietary model. It is accessed through an API rather than by downloading the weights.
How much does Claude Sonnet 4 cost? ▶
Pricing for Claude Sonnet 4 depends on the provider. See the providers table on this page for the latest API rates.
How does Claude Sonnet 4 perform on benchmarks? ▶
Claude Sonnet 4 is benchmarked across 17 evaluations on GenAIList, including BrowseComp (14.7%). See the full benchmark table below and compare it with other models.
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