Anthropic: Claude Sonnet 4.6
Analysis Summary
Anthropic: Claude Sonnet 4.6 sits in the Frontier tier on our leaderboard, ranked #10 of 525 published models on overall intelligence. At $3.00 input and $15.00 output per 1M tokens, it is among the most expensive on the market. It offers an exceptionally large context window suited to long-document workflows and supports tool use, function calling, vision, and reasoning.
Editorial notes
Claude Sonnet 4.6 from Anthropic is a highly capable mid-tier model with excellent coding performance, strong agentic scores, vision support, and a 1M token context window ā making it a well-rounded choice for businesses needing reliable performance across coding, content, and agent workflows. It sits just below the Opus tier in raw reasoning but offers strong value relative to its price.
Assessed April 23, 2026
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
Sonnet 4.6 is Anthropic's most capable Sonnet-class model yet, with frontier performance across coding, agents, and professional work. It excels at iterative development, complex codebase navigation, end-to-end project management with..
Capabilities
Performance Indices
Source: Artificial Analysis
Benchmark Scores
Intelligence
Technical
Content
Benchmark data from Artificial Analysis and Hugging Face
How does Anthropic: Claude Sonnet 4.6 stack up?
Compare side-by-side with other frontier models.
Model Information
| OpenRouter ID |
anthropic/claude-sonnet-4.6
|
| Provider | anthropic |
| Release Date | February 17, 2026 |
| Context Length | 1,000,000 tokens |
| Max Completion | 128,000 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 ā refreshed every 30 minutes.
