Compare Gemini 2.5 Pro Experimental by Google AI against GPT-5 Nano by OpenAI, in 1 community votes, gpt-5 nano wins 100% of head-to-head duels, tested across 38 shared challenges. Updated February 2026.
In 1 community votes, GPT-5 Nano wins 100% of head-to-head duels. Based on blind community voting from the RIVAL open dataset of 1+ human preference judgments for this pair.
38 challenges
Tests an AI's ability to understand game rules and strategy
Tests an AI's understanding of number representation
Tests an AI's randomness and creativity
Tests an AI's ability to generate vector graphics
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
Tests an AI's humor and creative writing ability
Tests an AI's ability to simulate personalities and predict future trends
Tests an AI's humor and understanding of current events
Tests an AI's ability to generate a complete, working landing page
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
Recreate an interactive, classic Mario level in a single HTML file.
Tests an AI's ability to replicate an existing UI with Tailwind CSS
