GPT-4o (Omni) vs GPT-5
Compare GPT-4o (Omni) and GPT-5, both from OpenAI, in 19 community votes, gpt-5 wins 78% of head-to-head duels, context windows of 128K vs 400K, tested across 52 shared challenges.
Reasoning: GPT-5 wins 71% of votes
Image Generation: GPT-5 wins 100% of votes
Conversation: GPT-4o (Omni) wins 67% of votes
Web Design: GPT-5 wins 100% of votes
Our Verdict
GPT-5Winner
GPT-4o (Omni)Runner-up
Pick GPT-5. In 19 blind votes, GPT-5 wins 78% of the time. That's not luck.
Pick GPT-4o (Omni) for Conversation. Pick GPT-5 for Image Generation, Web Design, Reasoning.
Clear winner
API pricing
Cost per 1M tokens
GPT-4o (Omni)
Input
$2.50
Output
$10.00
GPT-5
Input
$1.25
2.0× cheaper
Output
$10.00
Writing DNA
Style Comparison
Similarity
31%
GPT-4o (Omni) uses 2.5x more emoji
GPT-4o (Omni)
GPT-5
54%Vocabulary65%
18wSentence Length13w
0.72Hedging0.20
7.3Bold0.2
5.6Lists4.6
0.03Emoji0.00
1.40Headings0.16
0.26Transitions0.03
Based on 24 + 16 text responses
Research
What we learned reading every model
FAQ
