Gemini 2.5 Pro (I/O Edition)
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Gemini 2.5 Pro (I/O Edition) vs OpenAI o3
Compare Gemini 2.5 Pro (I/O Edition) by Google AI against OpenAI o3 by OpenAI, in 38 community votes, gemini 2.5 pro (i/o edition) wins 73% of head-to-head duels, tested across 35 shared challenges. Updated March 2026.
Which is better, Gemini 2.5 Pro (I/O Edition) or OpenAI o3?
Gemini 2.5 Pro (I/O Edition) is the better choice overall, winning 73% of 38 blind community votes on Rival. Gemini 2.5 Pro (I/O Edition) costs $1.25/M input tokens vs $10/M for OpenAI o3. Compare their real outputs side by side below.
Key Differences Between Gemini 2.5 Pro (I/O Edition) and OpenAI o3
Gemini 2.5 Pro (I/O Edition) is made by google while OpenAI o3 is from openai. On pricing, Gemini 2.5 Pro (I/O Edition) costs $1.25/M input tokens vs $10/M for OpenAI o3. In community voting, In 38 community votes, Gemini 2.5 Pro (I/O Edition) wins 73% of head-to-head duels.
In 38 community votes, Gemini 2.5 Pro (I/O Edition) wins 73% of head-to-head duels. Gemini 2.5 Pro (I/O Edition) leads in Web Design, Reasoning, Image Generation. Based on blind community voting from the Rival open dataset of 38+ human preference judgments for this pair.
Web Design: Gemini 2.5 Pro (I/O Edition) wins 64% of votes
Reasoning: Gemini 2.5 Pro (I/O Edition) wins 67% of votes
Image Generation: Gemini 2.5 Pro (I/O Edition) wins 100% of votes
Conversation: Gemini 2.5 Pro (I/O Edition) wins 75% of votes
Our Verdict
Gemini 2.5 Pro (I/O Edition)Winner
OpenAI o3Runner-up
Pick Gemini 2.5 Pro (I/O Edition). In 38 blind votes, Gemini 2.5 Pro (I/O Edition) wins 73% of the time. That's not luck.
Gemini 2.5 Pro (I/O Edition) particularly excels in Image Generation, Conversation, Reasoning. Gemini 2.5 Pro (I/O Edition) is 4.0x cheaper per token — worth considering if cost matters.
Clear winner
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