Gemini 2.5 Pro Experimental vs GPT OSS 20B

Compare Gemini 2.5 Pro Experimental by Google AI against GPT OSS 20B by OpenAI, in 10 community votes, gemini 2.5 pro experimental wins 88% of head-to-head duels, context windows of 1.0M vs 131K, tested across 43 shared challenges. Updated February 2026.

In 10 community votes, Gemini 2.5 Pro Experimental wins 88% of head-to-head duels. Gemini 2.5 Pro Experimental leads in Image Generation, Web Design. Based on blind community voting from the RIVAL open dataset of 10+ human preference judgments for this pair.