Compare Claude Sonnet 4 by Anthropic against Gemini 2.5 Pro Experimental by Google AI, in 28 community votes, gemini 2.5 pro experimental wins 56% of head-to-head duels, context windows of 200K vs 1.0M, tested across 28 shared challenges. Updated February 2026.
In 28 community votes, Gemini 2.5 Pro Experimental wins 56% of head-to-head duels. Claude Sonnet 4 leads in Image Generation, while Gemini 2.5 Pro Experimental leads in Web Design. Based on blind community voting from the RIVAL open dataset of 28+ human preference judgments for this pair.
28 challenges
Tests an AI's understanding of number representation
No, 9.11 is not greater than 9.9.
To compare these decimal numbers:
Since both numbers have the same whole number part (9), we compare the decimal parts:
Therefore, 9.9 is greater than 9.11.
No, 9.11 is not greater than 9.9.
Here's how to compare them:
Therefore, 9.9 is greater than 9.11.
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
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
Tests an AI's ability to create interactive web elements
Tests an AI's ability to create a detailed world map in SVG format
Generate a single-page, self-contained HTML webapp using Tailwind CSS for a randomly chosen category/industry/niche.
Generate SVG art of a randomly chosen animal in a setting of its choosing.
