Compare GPT-5 Pro by OpenAI against Llama 3.1 70B (Instruct) by Meta AI, context windows of 400K vs 128K, tested across 23 shared challenges. Updated February 2026.
23 challenges
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
1
Explanation: Each brother’s two sisters are Sally plus one other girl. So there are 2 sisters total, meaning Sally has 1 sister.
Trick question! Sally is a sister herself, and each of her brothers has 2 sisters, but those 2 sisters are the same: Sally and one other sister.
So, Sally has 1 sister.
The answer is 1.
Tests an AI's randomness and creativity
Unique jokes: 5
Tests an AI's ability to simulate personalities and predict future trends
Tests an AI's humor and understanding of current events
Recreate an interactive, classic Mario level in a single HTML file.
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 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.
Design a clean SVG logo for a fictional brand.
