DeepSeek V4 Pro vs OpenAI: GPT-5.6 Terra
Compare DeepSeek V4 Pro by DeepSeek against OpenAI: GPT-5.6 Terra by OpenAI, in 4 community votes, deepseek v4 pro wins 75% of head-to-head duels, context windows of 1.0M vs 1.1M, tested across 54 shared challenges.
Web Design: DeepSeek V4 Pro wins 67% of votes
Our Verdict
DeepSeek V4 ProWinner
OpenAI: GPT-5.6 TerraRunner-up
Pick DeepSeek V4 Pro. In 4 blind votes, DeepSeek V4 Pro wins 75% of the time. That's not luck.
DeepSeek V4 Pro particularly excels in Web Design. DeepSeek V4 Pro is 4.3x cheaper per token — worth considering if cost matters.
Clear winner
API pricing
Cost per 1M tokens
DeepSeek V4 Pro
Input
$1.74
1.4× cheaper
Output
$3.48
4.3× cheaper
OpenAI: GPT-5.6 Terra
Input
$2.50
Output
$15.00
DeepSeek V4 Pro is cheaper on both — 1.4× input, 4.3× output
Writing DNA
Style Comparison
Similarity
61%
DeepSeek V4 Pro uses 3.5x more emoji
DeepSeek V4 Pro
OpenAI: GPT-5.6 Terra
57%Vocabulary57%
18wSentence Length18w
0.52Hedging0.85
3.3Bold2.8
2.3Lists4.6
0.04Emoji0.00
0.45Headings1.12
0.15Transitions0.06
Based on 27 + 27 text responses
Research
What we learned reading every model
FAQ
