The exact steps on web and phone to turn off Improve the model for everyone, and what Temporary Chat keeps (up to 30 days for safety).
Data controls in ChatGPT
OpenAI Oct 2026
Open help.openai.com →On free and personal plans, assume not, until you change a setting. ChatGPT: Settings, Data controls, turn off Improve the model for everyone. Claude: Settings, Privacy, turn off Help improve our AI models. Gemini: turn off Keep Activity (Google still holds chats for 72 hours). Copilot: your profile, Privacy, then Training on conversation activity and Training on voice conversations; Microsoft's new Copilot app, out since 18 August 2026, does not list that switch on its controls page yet. Meta AI: its help pages offer no training switch, and since 16 December 2025 Meta uses AI chats to pick your ads in most regions; type /reset-ai to delete its copy of a chat. For a one-off sensitive question, use Temporary Chat in ChatGPT or Gemini, or Incognito in Claude.
On the AI map, 29 October 2026 AI assistants AI browsers Avatars and voice
8 resources.
The exact steps on web and phone to turn off Improve the model for everyone, and what Temporary Chat keeps (up to 30 days for safety).
OpenAI Oct 2026
Open help.openai.com →Where the Help improve our AI models switch sits in Claude on a computer and on a phone, and what turning it off does to past chats.
Anthropic Aug 2026
Open privacy.claude.com →Deleted Claude chats leave its systems within 30 days; with training on, data can stay up to 5 years.
Anthropic Jul 2026
Open privacy.claude.com →What Keep Activity controls, the 72-hour hold when it is off, and the 3 years reviewed chats are kept.
Google Oct 2026
Open support.google.com →The Training on conversation activity and Training on voice conversations switches, with the path on web, desktop and phone.
Microsoft 2026
Open support.microsoft.com →The controls in the Copilot app Microsoft released on 18 August 2026: memory, chat history, web search and ad personalisation.
Microsoft 2026
Open support.microsoft.com →Meta's announcement that chats with Meta AI shape the ads and posts you see from 16 December 2025, except sensitive topics.
Meta Oct 2025
Open about.fb.com →The /reset-ai and /reset-all-ais commands that delete Meta's copy of your chats on WhatsApp, Instagram and Messenger.
Meta 2026
Open facebook.com →