Gemini 3.1 Pro Preview
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Gemini 3.1 Pro Preview vs GPT-5 Pro
Compare Gemini 3.1 Pro Preview by Google AI against GPT-5 Pro by OpenAI, context windows of 1.0M vs 400K, tested across 41 shared challenges. Updated April 2026.
Which is better, Gemini 3.1 Pro Preview or GPT-5 Pro?
Gemini 3.1 Pro Preview and GPT-5 Pro are both competitive models. Gemini 3.1 Pro Preview costs $2/M input tokens vs $15/M for GPT-5 Pro. Context windows: 1049K vs 400K tokens. Compare their real outputs side by side below.
Key Differences Between Gemini 3.1 Pro Preview and GPT-5 Pro
Gemini 3.1 Pro Preview is made by google while GPT-5 Pro is from openai. Gemini 3.1 Pro Preview has a 1049K token context window compared to GPT-5 Pro's 400K. On pricing, Gemini 3.1 Pro Preview costs $2/M input tokens vs $15/M for GPT-5 Pro.
Our Verdict
Gemini 3.1 Pro Preview
GPT-5 ProRunner-up
No community votes yet. On paper, Gemini 3.1 Pro Preview has the edge — newer, bigger context window.
Gemini 3.1 Pro Preview is 10x cheaper per token — worth considering if cost matters.
Too close to call
Writing DNA
Style Comparison
Similarity
99%
Gemini 3.1 Pro Preview uses 487.7x more bold
Gemini 3.1 Pro Preview
GPT-5 Pro
54%Vocabulary65%
18wSentence Length15w
0.29Hedging0.32
4.9Bold0.0
3.3Lists2.9
0.00Emoji0.00
0.72Headings0.00
0.14Transitions0.01
Based on 23 + 11 text responses
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