GPT-4o (Omni) vs GPT-5.4 Mini
Compare GPT-4o (Omni) and GPT-5.4 Mini, both from OpenAI, context windows of 128K vs 400K, tested across 53 shared challenges.
Our Verdict
GPT-4o (Omni)
GPT-5.4 Mini
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
API pricing
Cost per 1M tokens
GPT-4o (Omni)
Input
$2.50
Output
$10.00
GPT-5.4 Mini
Input
$0.75
3.3× cheaper
Output
$4.50
2.2× cheaper
GPT-5.4 Mini is cheaper on both — 3.3× input, 2.2× output
Writing DNA
Style Comparison
Similarity
75%
GPT-4o (Omni) uses 2.5x more emoji
GPT-4o (Omni)
GPT-5.4 Mini
54%Vocabulary54%
18wSentence Length20w
0.72Hedging0.72
7.3Bold6.0
5.6Lists8.3
0.03Emoji0.00
1.40Headings2.11
0.26Transitions0.04
Based on 24 + 23 text responses
Research
What we learned reading every model
FAQ
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