Anthropic: Claude Sonnet 4.6
Analysis Summary
Claude Sonnet 4.6 is Anthropic's Sonnet-tier flagship from early 2026, with an intelligence index of 47.2 that places it among the top ten models in the landscape. Its coding index of 50.9 is world-class, and it combines vision, file input, tool use, and function calling in a single model. The 1M token context window matches the Opus tier for long-document and large-codebase work.
For businesses, Sonnet 4.6 is a strong all-round choice for coding agents, long-document analysis, client-facing content generation, and multimodal workflows. Its instruction-following and long-context reasoning scores are both high, making it reliable for structured output and editorial tasks. The agentic index is slightly lower than some peers at 64.4, but still well above the threshold for complex multi-step workflows.
At $3 input and $15 output per million tokens, it is meaningfully cheaper than the Opus tier while delivering comparable intelligence. For most business teams, Sonnet 4.6 offers the best balance of capability and cost in the Anthropic family, and is a strong default choice for high-value production workloads.
Assessed June 17, 2026
Editorial notes
Claude Sonnet 4.6 from Anthropic delivers frontier-tier reasoning and coding with a 1M token context, vision support, and strong instruction following, at a lower price point than the Opus tier.
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 #10 of 380 AI models we track for overall intelligence, #12 of 317 for coding, #44 of 292 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 #12 of 317 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.
