DeepSeek V3 (March 2024) vs GPT-5.5
Compare DeepSeek V3 (March 2024) by DeepSeek against GPT-5.5 by OpenAI, context windows of 128K vs 1.1M, tested across 54 shared challenges.
Our Verdict
GPT-5.5
DeepSeek V3 (March 2024)Runner-up
No community votes yet. On paper, GPT-5.5 has the edge — newer, bigger context window.
DeepSeek V3 (March 2024) is 107x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
DeepSeek V3 (March 2024)
Input
$0.14
36× cheaper
Output
$0.28
107× cheaper
GPT-5.5
Input
$5.00
Output
$30.00
DeepSeek V3 (March 2024) is cheaper on both — 36× input, 107× output
Writing DNA
Style Comparison
Similarity
49%
DeepSeek V3 (March 2024) uses 25.6x more emoji
DeepSeek V3 (March 2024)
GPT-5.5
58%Vocabulary58%
18wSentence Length18w
0.73Hedging0.74
7.5Bold2.9
7.6Lists5.1
0.26Emoji0.00
1.60Headings1.68
0.08Transitions0.03
Based on 16 + 26 text responses
Research
What we learned reading every model
FAQ
