When you type into an AI tool, your words sometimes help train the next version of it. Sometimes they don’t. The difference usually comes down to a setting you’ve never opened — and the default isn’t always in your favor.
Where to look
Most tools bury the control in the same few places: a “Data controls,” “Privacy,” or “Improve the model” toggle in settings. Free consumer tiers are the ones most likely to use your input by default. Paid and business plans more often exclude your data, but don’t assume — check.
What turning it off does
Opting out generally stops your future conversations from being used for training. It doesn’t always delete what’s already stored, and it rarely affects how the tool works for you day to day. If you handle anything sensitive, it’s a small step worth taking.
A quick habit
Whenever you start using a new AI tool, spend two minutes in settings before you put anything real into it. Find the training toggle, find the data-retention option, and decide on purpose. It’s the cheapest privacy win available, and almost nobody does it.