How to opt out of AI training on your chats in five services
ChatGPT, Claude, Gemini, Copilot, and Grok all use user conversations to train their models by default, unless users opt out. Each service requires a separate setting change, typically under Data Controls, Privacy, or Settings. Opting out only stops future use—past chats remain in training unless deleted, and data retention policies vary by platform. Meta is the only major exception: US users…
Key points
- OpenAI, Anthropic, Google, Microsoft, and Grok use user chats for training by default, with no opt-out for Meta US users
- Opting out requires toggling settings under *Data Controls* or *Privacy* on each platform, but past chats remain in training
- Meta’s US users cannot opt out, and chats since December 2025 feed ad targeting across its apps
How to stop AI companies from training on your data
engadget.com · 28 September 2026
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