Claude Opus 4.5 vs DeepSeek V4-Pro

Claude Opus 4.5 leads in 5 of 8 categories

Arena ELO

Claude Opus 4.5

Cheaper

Claude Opus 4.5

Faster

Claude Opus 4.5

Detailed Comparison

Category	Claude Opus 4.5	DeepSeek V4-Pro
Provider	Anthropic	DeepSeek
Context Window	200K WIN	128K
Input Price ($/1M)	$5 WIN	N/A
Output Price ($/1M)	$25 WIN	N/A
Arena ELO	1380 WIN	N/A
Coding	80.9% SWE-bench	N/A
Reasoning	unknown	N/A
Speed (tokens/sec)	~35 t/s WIN	N/A
Open Source	No	No

Frequently Asked Questions

Which is better for coding, Claude Opus 4.5 or DeepSeek V4-Pro?

Claude Opus 4.5 scores 80.9% SWE-bench on coding benchmarks, while DeepSeek V4-Pro scores N/A.

Which has a larger context window?

Claude Opus 4.5 supports 200K context, while DeepSeek V4-Pro supports 128K.

Is Claude Opus 4.5 or DeepSeek V4-Pro open source?

Claude Opus 4.5 is proprietary. DeepSeek V4-Pro is proprietary.

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