Open Source
CL4R1T4S (Latin for clarity) is an open transparency project by elder-plinius that aggregates leaked and reverse-engineered system prompts from the world's most popular AI tools — including ChatGPT, Claude, Gemini, Grok, Perplexity, Cursor, Lovable, Replit, and many more. The repo serves as a window into how commercial AI products are instructed behind the scenes, making it invaluable for researchers, prompt engineers, and developers who want to understand real-world system prompt design patterns. It is one of the most-starred AI transparency repos on GitHub with over 43,000 stars.