o3 Mini vs Gemini 1.5 Pro

Compare o3 Mini by OpenAI against Gemini 1.5 Pro by Google AI, context windows of 64K vs 1.0M, tested across 14 shared challenges. Updated March 2026.

Which is better, o3 Mini or Gemini 1.5 Pro?

o3 Mini and Gemini 1.5 Pro are both competitive models. o3 Mini costs $1.1/M input tokens vs $3.5/M for Gemini 1.5 Pro. Context windows: 64K vs 1000K tokens. Compare their real outputs side by side below.

Key Differences Between o3 Mini and Gemini 1.5 Pro

o3 Mini is made by openai while Gemini 1.5 Pro is from google. o3 Mini has a 64K token context window compared to Gemini 1.5 Pro's 1000K. On pricing, o3 Mini costs $1.1/M input tokens vs $3.5/M for Gemini 1.5 Pro.

Our Verdict
Gemini 1.5 Pro
Gemini 1.5 Pro
o3 Mini
o3 MiniRunner-up

No community votes yet. On paper, Gemini 1.5 Pro has the edge — bigger model tier, bigger context window.

Too close to call
vs

Ask them anything yourself

o3 MiniGemini 1.5 Pro
FAQ