GPT-5.1 Chat vs Claude Opus 4
Compare GPT-5.1 Chat by OpenAI against Claude Opus 4 by Anthropic, context windows of 128K vs 200K, tested across 34 shared challenges. Updated February 2026.
Compare GPT-5.1 Chat by OpenAI against Claude Opus 4 by Anthropic, context windows of 128K vs 200K, tested across 34 shared challenges. Updated February 2026.
34 challenges
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
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.