How do I stop X from using my posts to train Grok?

X, the platform formerly known as Twitter, can use public posts and your interactions with Grok to train and improve xAI's models. Many users only discovered this after the setting had already been switched on by default. The good news is that you can turn it off in a minute.

The control sits in your X privacy settings. On the website or app, go to Settings and privacy, then Privacy and safety, and look for the section about data sharing and personalisation, where there is an entry for Grok. Inside, you will find an option that allows your public data, along with your interactions, inputs and results with Grok, to be used for training. Untick or switch off that option. Exact menu names change from time to time as X updates its app, so if the path looks slightly different, search the settings page for "Grok."

On the web version, the option has typically been easier to find than in the mobile app, so if you cannot see it on your phone, try logging in on a computer.

You can also delete your past conversations with Grok. Look for the option to clear your Grok history in the same settings area or inside Grok itself.

A few points help put this in perspective:

1. Turning the setting off covers future training. Data that may already have been used in a past training run cannot simply be pulled back out of a model.
2. Making your account private means your posts are no longer public, which also limits how they can be used.
3. Anything you type into Grok is still processed to give you an answer, even if it is not used for training. Avoid sharing sensitive personal details such as account numbers, ID numbers or private health information.

This is a good moment to check the training settings across all the AI tools you use. ChatGPT, Gemini, Claude and others each have their own controls over whether your conversations can be used for model improvement, and the defaults differ by service and by account type. Business and enterprise plans often handle data differently from personal accounts.

Spending five minutes reviewing these settings once is one of the simplest ways to stay in control of your data while still enjoying AI tools.