Anthropic: Claude Sonnet 4.6
Analysis Summary
Claude Sonnet 4.6 is Anthropic's current mid-tier flagship, with an intelligence index of 51.7 and a coding index of 50.9, both placing it in the global top 15. It supports vision, tool use, and function calling across a 1,000,000 token context window. Instruction following at 0.566 and long-context reliability at 0.707 are strong, and the terminal benchmark score of 0.530 confirms reliable agentic task completion.
For businesses, Sonnet 4.6 covers the full range of demanding workloads: software engineering, autonomous agents, long-document analysis, client-facing content, and multimodal tasks. The 1M context window is a meaningful advantage for large codebase or contract review workflows. It sits below Claude Opus 4.7 and 4.8 on raw capability, but at a significantly lower price point.
At $3.00 input and $15.00 output per million tokens, it offers a strong capability-to-cost ratio for high-value tasks. For most businesses, Sonnet 4.6 is the practical sweet spot in the Anthropic range, delivering near-flagship performance without the full Opus price premium.
Assessed June 9, 2026
Editorial notes
Claude Sonnet 4.6 from Anthropic delivers top-15 intelligence and coding performance with a 1M token context, vision, strong instruction following, and reliable agentic execution for demanding business use.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
Performance Profile
How Anthropic: Claude Sonnet 4.6 compares
Anthropic: Claude Sonnet 4.6 ranks #15 of 378 AI models we track for overall intelligence, #10 of 315 for coding, #39 of 289 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 4.6
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 professional 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, refreshed every 30 minutes.
Leaderboard Categories
External Resources
Frequently asked questions about Anthropic: Claude Sonnet 4.6
How much does Anthropic: Claude Sonnet 4.6 cost?
Anthropic: Claude Sonnet 4.6 costs $3.00 per million input tokens and $15.00 per million output tokens.
What is the context window of Anthropic: Claude Sonnet 4.6?
Anthropic: Claude Sonnet 4.6 has a context window of 1,000,000 tokens (1M).
Is Anthropic: Claude Sonnet 4.6 good for coding?
On our coding benchmark index, Anthropic: Claude Sonnet 4.6 ranks #10 of 315 models, placing it in the top quartile of the field for code generation and debugging.
What can Anthropic: Claude Sonnet 4.6 do?
Anthropic: Claude Sonnet 4.6 supports image/vision input, tool use, and function calling.
Who created Anthropic: Claude Sonnet 4.6?
Anthropic: Claude Sonnet 4.6 is developed by Anthropic and was released on February 17, 2026.
