Being Tricky
The short answer
The key AI privacy settings are one switch per app. ChatGPT: Settings → Data controls → Improve the model for everyone, off.
At a glance
About 30 minutes · Advanced · For AI
Key point 1 of 5
For a one-off private conversation, start a Temporary Chat.
Key point 2 of 5
If you're 18 or over, Keep Activity is on by default.
Key point 3 of 5
Once it's off, Anthropic says it won't use your new or previously stored chats in future training runs, though anything already used in training…
Key point 4 of 5
Microsoft is clear about the limits: opting out stops future conversations being used to train its AI models, but not their use for general product…
Key point 5 of 5
Meta offers the fewest controls.
Watch out
Microsoft released a new version of the Copilot app on August 18, 2026, and says its older privacy instructions apply to the previous version.
You might ask
How do I stop ChatGPT from using my data for training? Go to Settings → Data controls and turn off Improve the model for everyone.
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Being Tricky