Gemini 2.5 Pro (I/O Edition) vs GPT-5

Compare Gemini 2.5 Pro (I/O Edition) by Google AI against GPT-5 by OpenAI, in 41 community votes, gemini 2.5 pro (i/o edition) wins 62% of head-to-head duels, tested across 35 shared challenges. Updated February 2026.

In 41 community votes, Gemini 2.5 Pro (I/O Edition) wins 62% of head-to-head duels. Gemini 2.5 Pro (I/O Edition) leads in Image Generation, Reasoning, Conversation. Based on blind community voting from the RIVAL open dataset of 41+ human preference judgments for this pair.