ChatGPT Data Privacy: What ChatGPT, Claude, and Gemini Actually Do With Your Data

This report compares data privacy practices across major AI chat assistants (ChatGPT, Claude, Gemini), explaining differences in conversation retention, model training, account-level and enterprise protections, and user privacy controls; it outlines personal, business, and regulatory risks and provides recommended best practices to avoid exposing sensitive information when using AI chatbots.