DeepSeek V4 Flash vs GPT-4o (Omni)
Compare DeepSeek V4 Flash by DeepSeek against GPT-4o (Omni) by OpenAI, context windows of 1.0M vs 128K, tested across 53 shared challenges.
Our Verdict
DeepSeek V4 Flash
GPT-4o (Omni)
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
DeepSeek V4 Flash is 36x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
DeepSeek V4 Flash
Input
$0.14
18× cheaper
Output
$0.28
36× cheaper
GPT-4o (Omni)
Input
$2.50
Output
$10.00
DeepSeek V4 Flash is cheaper on both — 18× input, 36× output
Writing DNA
Style Comparison
Similarity
49%
GPT-4o (Omni) uses 2.5x more emoji
DeepSeek V4 Flash
GPT-4o (Omni)
54%Vocabulary54%
17wSentence Length18w
0.52Hedging0.72
3.6Bold7.3
2.6Lists5.6
0.00Emoji0.03
0.41Headings1.40
0.19Transitions0.26
Based on 27 + 24 text responses
Research
What we learned reading every model
FAQ
