Compare GPT-5.3 Chat and ChatGPT-4o (March 2025), both from OpenAI, context windows of 128K vs 128K, tested across 32 shared challenges. Updated March 2026.
27 fights queued
Tests an AI's ability to understand game rules and strategy
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 ability to generate a complete, working landing page
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 smooth web animations
Tests an AI's UI design skills with theming support
Tests an AI's ability to create interactive web elements
15+ head-to-head challenges. All of them judged by real people.
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