Claude Sonnet 4.6

Feb 2026
Claude Sonnet 4.6
Compare in
on
—per task?
$3 / $15per 1M in / outcache $0.30
51 tok/sfirst token in 1 s?
1Mcontext

Alternatives?

History

7 versions
60657075Jul 25Oct 25Jan 26Apr 26Jul 26Release dateMMMU-Pro44.54.65
60657075Jul 25Jan 26Jul 26Release dateMMMU-Pro44.54.65

Benchmarks

in Vision & Documents

FAQ

How much does Claude Sonnet 4.6 cost?›

$3 per 1M input tokens and $15 per 1M output tokens; cached input $0.30 per 1M.

Is Claude Sonnet 4.6 free to use?›

There is no free API; the cheapest paid price is $3 per 1M input tokens.

How good is Claude Sonnet 4.6, and what is it best at?›

#152 of 334 in Chat & Knowledge, #46 of 132 in Coding, #61 of 133 in Agents & Tool Use, #27 of 195 in Writing & Language, #67 of 124 in Vision & Documents. Strongest at: Knowledge.

Is Claude Sonnet 4.6 better than Gemma 4 31B?›

On MMMU-Pro (vision), Claude Sonnet 4.6 scores 73.3 vs 73.4 — about the same.

How can I use Claude Sonnet 4.6?›

Through the API of Amazon Bedrock, Anthropic, Azure, Claude Platform on AWS, DeepInfra and 1 more.

What is the context window of Claude Sonnet 4.6?›

1M tokens, with up to 128K output tokens.

When was Claude Sonnet 4.6 released? Is there a newer version?›

Released 2026-02-17. It has been superseded by Claude Sonnet 5.

Is Claude Sonnet 4.6 open source?›

No, Claude Sonnet 4.6 is a closed model available through an API. The closest open-weights option here is Muse Spark Open.

Can Claude Sonnet 4.6 read images?›

It accepts text and images, PDF files as input.

What is Claude Sonnet 4.6?›

Claude Sonnet 4.6 is a closed language model from Anthropic, released Feb 2026.

What are the best alternatives to Claude Sonnet 4.6?›

GPT-6.1 Sol (cheaper), GPT-6 Luna (better), Muse Spark Open (open weights).