Gemini 3 Flash Preview vs GPT-5.5
Compare Gemini 3 Flash Preview by Google AI against GPT-5.5 by OpenAI, context windows of 1.0M vs 1.1M, tested across 54 shared challenges. Updated May 2026.
Which is better, Gemini 3 Flash Preview or GPT-5.5?
Gemini 3 Flash Preview and GPT-5.5 are both competitive models. Gemini 3 Flash Preview costs $0.5/M input tokens vs $5/M for GPT-5.5. Context windows: 1049K vs 1050K tokens. Compare their real outputs side by side below.
Key Differences Between Gemini 3 Flash Preview and GPT-5.5
Gemini 3 Flash Preview is made by google while GPT-5.5 is from openai. Gemini 3 Flash Preview has a 1049K token context window compared to GPT-5.5's 1050K. On pricing, Gemini 3 Flash Preview costs $0.5/M input tokens vs $5/M for GPT-5.5.
Per 1M tokens
Gemini 3 Flash Preview is cheaper on both — 10× input, 10× output
No community votes yet. On paper, GPT-5.5 has the edge — bigger model tier, newer.
Gemini 3 Flash Preview is 10x cheaper per token — worth considering if cost matters.
Style Comparison
Gemini 3 Flash Preview uses 2.5x more bold
