Gemini 3.1 Pro Preview vs GPT-5
Compare Gemini 3.1 Pro Preview by Google AI against GPT-5 by OpenAI, context windows of 1.0M vs 400K, tested across 51 shared challenges. Updated May 2026.
Which is better, Gemini 3.1 Pro Preview or GPT-5?
Gemini 3.1 Pro Preview and GPT-5 are both competitive models. Gemini 3.1 Pro Preview costs $2/M input tokens vs $1.25/M for GPT-5. 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
Gemini 3.1 Pro Preview is made by google while GPT-5 is from openai. Gemini 3.1 Pro Preview has a 1049K token context window compared to GPT-5's 400K. On pricing, Gemini 3.1 Pro Preview costs $2/M input tokens vs $1.25/M for GPT-5.
Per 1M tokens
GPT-5 is cheaper on both — 1.6× input, 1.2× output
No community votes yet. On paper, Gemini 3.1 Pro Preview has the edge — newer, bigger context window.
Style Comparison
Gemini 3.1 Pro Preview uses 25.9x more bold
