Gemini 2.5 Pro Experimental vs o1

Compare Gemini 2.5 Pro Experimental by Google AI against o1 by OpenAI, in 8 community votes, gemini 2.5 pro experimental wins 100% of head-to-head duels, context windows of 1.0M vs 128K, tested across 35 shared challenges. Updated February 2026.

In 8 community votes, Gemini 2.5 Pro Experimental wins 100% of head-to-head duels. Gemini 2.5 Pro Experimental leads in Web Design, Image Generation, Reasoning. Based on blind community voting from the RIVAL open dataset of 8+ human preference judgments for this pair.