ChatGPT-4o (March 2025)
Nothing here. The model returned empty. We stared at it for a while.
ChatGPT-4o (March 2025) vs Gemini 3 Flash Preview
Compare ChatGPT-4o (March 2025) by OpenAI against Gemini 3 Flash 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 Flash Preview?
ChatGPT-4o (March 2025) and Gemini 3 Flash Preview are both competitive models. ChatGPT-4o (March 2025) costs $5/M input tokens vs $0.5/M for Gemini 3 Flash 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 Flash Preview
ChatGPT-4o (March 2025) is made by openai while Gemini 3 Flash Preview is from google. ChatGPT-4o (March 2025) has a 128K token context window compared to Gemini 3 Flash Preview's 1049K. On pricing, ChatGPT-4o (March 2025) costs $5/M input tokens vs $0.5/M for Gemini 3 Flash Preview.
Our Verdict
ChatGPT-4o (March 2025)
Gemini 3 Flash Preview
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Gemini 3 Flash Preview is 5.0x cheaper per token — worth considering if cost matters.
Too close to call
Writing DNA
Style Comparison
Similarity
99%
ChatGPT-4o (March 2025) uses 94.5x more emoji
ChatGPT-4o (March 2025)
Gemini 3 Flash Preview
55%Vocabulary55%
24wSentence Length18w
0.52Hedging0.42
3.3Bold7.1
6.0Lists4.5
0.94Emoji0.00
0.63Headings0.84
0.05Transitions0.07
Based on 15 + 24 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.
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