Anthropic: Claude Sonnet 4
Analysis Summary
Anthropic: Claude Sonnet 4 comes from Anthropic. It was released in May 2025. We place it in the Specialist tier, where it sits at #73 of 571 models overall. For raw reasoning ability it ranks #94 of 374, putting it in the top quartile for overall intelligence.
On coding it ranks #86 of 311, a reasonable fit for everyday development support. For agentic automation it sits at #112 of 286, handling the multi-step, tool-using tasks that power AI agents. Its 1M-token context window is larger than 91% of the models we list, suiting long documents, large codebases, and retrieval-heavy workloads. Crucially for business adoption, Anthropic: Claude Sonnet 4 combines tool use, function calling, vision input, and step-by-step reasoning in a single model, letting teams consolidate several use cases instead of stitching together multiple services.
At $3.00 input and $15.00 output per 1M tokens, Anthropic: Claude Sonnet 4 is premium priced. Anthropic: Claude Sonnet 4 is best deployed where its particular strengths line up with the task, rather than as a general-purpose frontier model.
Editorial notes
Claude Sonnet 4 from Anthropic delivers strong instruction following, agentic capability, vision, and a 1M token context, with best-in-class content quality for client-facing business workflows.
Assessed May 31, 2026
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
How Anthropic: Claude Sonnet 4 compares
Anthropic: Claude Sonnet 4 ranks #94 of 374 AI models we track for overall intelligence, #86 of 311 for coding, #112 of 286 for agentic tasks. Its 1M-token context window is larger than 91% of the models we list. At $3.00 per million input tokens it is cheaper than 10% of comparable models.
About Anthropic: Claude Sonnet 4
Claude Sonnet 4 significantly enhances the capabilities of its predecessor, Sonnet 3.7, excelling in both coding and reasoning tasks with improved precision and controllability. Achieving state-of-the-art performance on SWE-bench (72.7%),..
Capabilities
Performance Indices
Source: Artificial Analysis
Benchmark Scores
Intelligence
Technical
Content
Benchmark data from Artificial Analysis and Hugging Face
How does Anthropic: Claude Sonnet 4 stack up?
Compare side-by-side with other specialist models.
Model Information
| OpenRouter ID |
anthropic/claude-sonnet-4
|
| Provider | anthropic |
| Release Date | May 22, 2025 |
| Context Length | 1,000,000 tokens |
| Max Completion | 64,000 tokens |
| Status | Active |
Pricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $3.00 | $0.003000 |
| Output | $15.00 | $0.015000 |
Live Performance
Live endpoint metrics, refreshed every 30 minutes.
Leaderboard Categories
External Resources
Frequently asked questions about Anthropic: Claude Sonnet 4
How much does Anthropic: Claude Sonnet 4 cost?
Anthropic: Claude Sonnet 4 costs $3.00 per million input tokens and $15.00 per million output tokens.
What is the context window of Anthropic: Claude Sonnet 4?
Anthropic: Claude Sonnet 4 has a context window of 1,000,000 tokens (1M).
Is Anthropic: Claude Sonnet 4 good for coding?
On our coding benchmark index, Anthropic: Claude Sonnet 4 ranks #86 of 311 models, placing it in the broader range of the field for code generation and debugging.
What can Anthropic: Claude Sonnet 4 do?
Anthropic: Claude Sonnet 4 supports image/vision input, tool use, and function calling.
Who created Anthropic: Claude Sonnet 4?
Anthropic: Claude Sonnet 4 is developed by Anthropic and was released on May 22, 2025.
