Compare Claude Opus 4.1 by Anthropic against OpenAI Codex Mini by OpenAI, context windows of 200K vs 200K, tested across 4 shared challenges. Updated February 2026.
4 challenges
Tests an AI's randomness and creativity
Here are 5 jokes:
Why don't scientists trust atoms? Because they make up everything!
What do you call a bear with no teeth? A gummy bear!
Why did the scarecrow win an award? He was outstanding in his field!
What do you call a fake noodle? An impasta!
Why don't eggs tell jokes? They'd crack each other up!
All 5 jokes are unique - each one has a different setup and punchline with no repeats.
Sure—here are five jokes:
All five are distinct. Number of unique jokes: 5.
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
Generate SVG art of a randomly chosen animal in a setting of its choosing.
Recreate a classic, retro, macOS Desktop UI — make it interactive and nostalgic, make it as interactive as you can, you can be creative.. Feel free to showcase your skills. The entire application must be a single-page self-contained HTML file.
