Claude Sonnet 4.6 vs DeepSeek V4-Pro

Claude Sonnet 4.6 leads in 5 of 8 categories

Arena ELO

Claude Sonnet 4.6

Cheaper

Claude Sonnet 4.6

Faster

Claude Sonnet 4.6

Detailed Comparison

Category	Claude Sonnet 4.6	DeepSeek V4-Pro
Provider	Anthropic	DeepSeek
Context Window	1M WIN	128K
Input Price ($/1M)	$3 WIN	N/A
Output Price ($/1M)	$15 WIN	N/A
Arena ELO	1440 WIN	N/A
Coding	79.6% SWE-bench	N/A
Reasoning	72.5% OSWorld	N/A
Speed (tokens/sec)	~80 t/s WIN	N/A
Open Source	No	No

Frequently Asked Questions

Which is better for coding, Claude Sonnet 4.6 or DeepSeek V4-Pro?

Claude Sonnet 4.6 scores 79.6% SWE-bench on coding benchmarks, while DeepSeek V4-Pro scores N/A.

Which has a larger context window?

Claude Sonnet 4.6 supports 1M context, while DeepSeek V4-Pro supports 128K.

Is Claude Sonnet 4.6 or DeepSeek V4-Pro open source?

Claude Sonnet 4.6 is proprietary. DeepSeek V4-Pro is proprietary.

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