GPT-4o (Omni)
Nothing here. The model returned empty. We stared at it for a while.
GPT-4o (Omni) vs Gemini 3.1 Pro Preview
Compare GPT-4o (Omni) by OpenAI against Gemini 3.1 Pro Preview by Google AI, context windows of 128K vs 1.0M, tested across 52 shared challenges. Updated April 2026.
Which is better, GPT-4o (Omni) or Gemini 3.1 Pro Preview?
GPT-4o (Omni) and Gemini 3.1 Pro Preview are both competitive models. GPT-4o (Omni) costs $2.5/M input tokens vs $2/M for Gemini 3.1 Pro Preview. Context windows: 128K vs 1049K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4o (Omni) and Gemini 3.1 Pro Preview
GPT-4o (Omni) is made by openai while Gemini 3.1 Pro Preview is from google. GPT-4o (Omni) has a 128K token context window compared to Gemini 3.1 Pro Preview's 1049K. On pricing, GPT-4o (Omni) costs $2.5/M input tokens vs $2/M for Gemini 3.1 Pro Preview.
Our Verdict
Gemini 3.1 Pro Preview
GPT-4o (Omni)Runner-up
No community votes yet. On paper, Gemini 3.1 Pro Preview has the edge — newer, bigger context window.
Too close to call
Writing DNA
Style Comparison
Similarity
97%
GPT-4o (Omni) uses 2.5x more emoji
GPT-4o (Omni)
Gemini 3.1 Pro Preview
54%Vocabulary54%
18wSentence Length18w
0.72Hedging0.29
7.3Bold4.9
5.6Lists3.3
0.03Emoji0.00
1.40Headings0.72
0.26Transitions0.14
Based on 24 + 23 text responses
vsAsk them anything yourself
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
Free preview13 of 58 slides
FAQ