ChatGPT-4o (March 2025)
Nothing here. The model returned empty. We stared at it for a while.
ChatGPT-4o (March 2025) vs Gemini 3.1 Pro Preview
Compare ChatGPT-4o (March 2025) by OpenAI against Gemini 3.1 Pro Preview by Google AI, context windows of 128K vs 1.0M, tested across 32 shared challenges. Updated April 2026.
Which is better, ChatGPT-4o (March 2025) or Gemini 3.1 Pro Preview?
ChatGPT-4o (March 2025) and Gemini 3.1 Pro Preview are both competitive models. ChatGPT-4o (March 2025) costs $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 ChatGPT-4o (March 2025) and Gemini 3.1 Pro Preview
ChatGPT-4o (March 2025) is made by openai while Gemini 3.1 Pro Preview is from google. ChatGPT-4o (March 2025) has a 128K token context window compared to Gemini 3.1 Pro Preview's 1049K. On pricing, ChatGPT-4o (March 2025) costs $5/M input tokens vs $2/M for Gemini 3.1 Pro Preview.
Our Verdict
Gemini 3.1 Pro Preview
ChatGPT-4o (March 2025)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
96%
ChatGPT-4o (March 2025) uses 94.5x more emoji
ChatGPT-4o (March 2025)
Gemini 3.1 Pro Preview
55%Vocabulary54%
24wSentence Length18w
0.52Hedging0.29
3.3Bold4.9
6.0Lists3.3
0.94Emoji0.00
0.63Headings0.72
0.05Transitions0.14
Based on 15 + 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