Claude Opus 5 vs DeepSeek V3 (March 2024)
Compare Claude Opus 5 by Anthropic against DeepSeek V3 (March 2024) by DeepSeek, context windows of 1.0M vs 128K, tested across 54 shared challenges.
Our Verdict
Claude Opus 5
DeepSeek V3 (March 2024)Runner-up
No community votes yet. On paper, Claude Opus 5 has the edge — newer, bigger context window.
DeepSeek V3 (March 2024) is 89x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Claude Opus 5
Input
$5.00
Output
$25.00
DeepSeek V3 (March 2024)
Input
$0.14
36× cheaper
Output
$0.28
89× cheaper
DeepSeek V3 (March 2024) is cheaper on both — 36× input, 89× output
Writing DNA
Style Comparison
Similarity
31%
DeepSeek V3 (March 2024) uses 15.0x more emoji
Claude Opus 5
DeepSeek V3 (March 2024)
54%Vocabulary58%
21wSentence Length18w
0.40Hedging0.73
3.9Bold7.5
1.9Lists7.6
0.02Emoji0.26
0.71Headings1.60
0.05Transitions0.08
Based on 27 + 16 text responses
Research
What we learned reading every model
FAQ
