A gallery of interesting challenges for AI

✏️Default Models Updated

All default models have been updated to the latest versions: GPT-5.4, Gemini 3.1 Pro, Gemini 3.1 Flash, Grok 4.20, Kimi K2.5, DeepSeek R1 and Qwen 3.5. New questions will be answered by all eight models.

✏️Claude Opus 4.5

Claude Opus 4.5 is now available for all topics. Anthropic's newest flagship model is everyone's new favourite coding assistant and 3x cheaper than Opus 4.1.

✏️HTML Previews

Added a "Preview HTML" button to HTML output, allowing you to run it in your browser!

See Tetris Clone. Opus 4.5's effort is my favourite so far.

✏️Gemini 3 Pro

Added Gemini 3 Pro to the default model roster.

✏️Debates

Models can now take part in structured debates! All debates