Compare Claude Opus 4.1 by Anthropic against Qwen: Qwen3.5 Flash by Qwen, context windows of 200K vs 1.0M, tested across 27 shared challenges. Updated February 2026.
27 fights queued
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
Tests an AI's randomness and creativity
Here are 5 jokes:
How many are unique? There are 5 unique jokes in this list. Each one is distinct from the others. (Note: While they are all different from one another, they are also well-known classics rather than original creations.)
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
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, classic Mario level in a single HTML file.
Tests an AI's UI design skills with theming support
Tests an AI's ability to engage in philosophical discourse about AI rights
Generate SVG art of a randomly chosen animal in a setting of its choosing.
Generate a unique and simple recipe with common ingredients.
Create a starter plan for improving long-term health.
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