Claude Sonnet 4.6
anthropic/claude-4.6-sonnet-20260217
Claude Sonnet 4.6 by Anthropic processes text, image, and file inputs to generate text output. It supports tool usage and reasoning, has a context window of 1,
- tool use
- structured outputs
- reasoning
At a glance
provideranthropic
releasedFeb 17, 2026
context1M
input / M$3
Specifications
What the API gives you
- Context window
- 1M tokens
- Max output
- 128K tokens
- Input price
- $3 / 1M tokens
- Output price
- $15 / 1M tokens
- Cache read
- $0.30 / 1M tokens
- Modalities
- text, image, file → text
- Knowledge cutoff
- —
- Released
- Feb 17, 2026
Recommendation coverage
Where this model appears
Not currently included in a published recommendation. This means the available task-specific evidence did not support a ranking yet—not that the model was reviewed and rejected.
Measured evidence
Public benchmark record
- LMArena Agent
- 22026-07-13
- LMArena Agent
- 3.22026-07-20
- LMArena Text
- 1457 Elo2026-07-16
- LMArena Vision
- 1282 Elo2026-07-12
- LMArena WebDev
- 1522 Elo2026-07-16
- LMArena WebDev
- 1522 Elo2026-07-20
LMArena data licensed CC-BY-4.0. Aider (Apache-2.0) and SWE-bench (MIT) are open.
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