ChatGPT-4o (March 2025) vs GPT-4o (Omni)
Compare ChatGPT-4o (March 2025) and GPT-4o (Omni), both from OpenAI, in 7 community votes, gpt-4o (omni) wins 57% of head-to-head duels, context windows of 128K vs 128K, tested across 32 shared challenges.
Conversation: GPT-4o (Omni) wins 100% of votes
Image Generation: ChatGPT-4o (March 2025) and GPT-4o (Omni) are tied
Our Verdict
GPT-4o (Omni)Winner
ChatGPT-4o (March 2025)Runner-up
GPT-4o (Omni) has the edge overall. In 7 blind votes, GPT-4o (Omni) wins 57% of the time.
GPT-4o (Omni) particularly excels in Conversation.
Slight edge
API pricing
Cost per 1M tokens
ChatGPT-4o (March 2025)
Input
$5.00
Output
$15.00
GPT-4o (Omni)
Input
$2.50
2.0× cheaper
Output
$10.00
1.5× cheaper
GPT-4o (Omni) is cheaper on both — 2.0× input, 1.5× output
Writing DNA
Style Comparison
Similarity
44%
ChatGPT-4o (March 2025) uses 37.6x more emoji
ChatGPT-4o (March 2025)
GPT-4o (Omni)
55%Vocabulary54%
24wSentence Length18w
0.52Hedging0.72
3.3Bold7.3
6.0Lists5.6
0.94Emoji0.03
0.63Headings1.40
0.05Transitions0.26
Based on 15 + 24 text responses
Research
What we learned reading every model
FAQ
