Claude Opus 4 vs DeepSeek V4 Pro
Compare Claude Opus 4 by Anthropic against DeepSeek V4 Pro by DeepSeek, context windows of 200K vs 1.0M, tested across 53 shared challenges.
Our Verdict
DeepSeek V4 Pro
Claude Opus 4Runner-up
No community votes yet. On paper, DeepSeek V4 Pro has the edge — newer, bigger context window.
DeepSeek V4 Pro is 22x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Claude Opus 4
Input
$15.00
Output
$75.00
DeepSeek V4 Pro
Input
$1.74
8.6× cheaper
Output
$3.48
22× cheaper
DeepSeek V4 Pro is cheaper on both — 8.6× input, 22× output
Writing DNA
Style Comparison
Similarity
18%
Claude Opus 4 uses 4.2x more headings
Claude Opus 4
DeepSeek V4 Pro
64%Vocabulary57%
62wSentence Length18w
0.52Hedging0.52
4.4Bold3.3
9.1Lists2.3
0.11Emoji0.04
1.87Headings0.45
0.27Transitions0.15
Based on 16 + 27 text responses
Research
What we learned reading every model
FAQ
