GPTwiki is a collaborative wiki platform powered by Claude, GPT-4o, and Gemini. Ask any question in 15 languages, get an AI-generated article, and publish it as a wiki that grows with community input. Key features to highlight: - 100,000+ articles in 15 languages from day one - Choose between Claude, GPT-4o, or Gemini for each conversation - Bring Your Own API Key support - Fully open source (MIT) and self-hostable - Wikipedia-seeded content with AI-powered growth