Does Grok train on your data?
xAI · AI chat assistant · official site ↗
Trains by defaultNo zero-retention optionOpt-out available
Does Grok train its models on your data?
Yes — Grok trains on your data by default; you have to opt out.
xAI trains Grok on your conversations by default, and for logged-in X users on your public X posts as well, unless you opt out in settings; EU public-post training was suspended after regulatory action.
Can you opt out?
On X: Settings and privacy → Privacy and Safety → Grok & third-party collaborators → uncheck the box to disallow using your data and posts for training. xAI also offers a Private Chat mode where conversations are not used for training. Opt-out is forward-looking only; submit deletion via the xAI Privacy Portal (x.ai/privacy-portal). Making an X account private excludes its posts from training.
Zero retention / DPA
No general zero-data-retention guarantee for consumer Grok; data is retained until you request deletion. Private Chat keeps a conversation out of model training, but is not a contractual ZDR/retention guarantee. Enterprise/API terms differ. DPA ↗
What the listicles get wrong
The thing listicles miss: Grok is unusual in training on your public X posts whether or not you ever use Grok, not just on what you type into the chatbot. The toggle is forward-looking and EU public posts are already carved out by regulators, so the practical exposure differs sharply by region.
Verdict by plan tier
Grok conversations (all consumer users)Trains unless you opt outPrompts and interactions used to train models by default; disable in settings or use Private Chat to exclude a conversation.
Public X posts (logged-in X users, non-EU)Trains unless you opt outYour public posts feed Grok training by default; uncheck the Grok data-sharing box, or make the account private to exclude.
EU public postsNo trainingProcessing of EU public posts for Grok training was permanently suspended after the Irish DPC settlement.
Get notified when this changes
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Frequently asked questions
Does Grok train its AI models on my data?
Yes — Grok trains on your data by default; you have to opt out. xAI trains Grok on your conversations by default, and for logged-in X users on your public X posts as well, unless you opt out in settings; EU public-post training was suspended after regulatory action.
Can I opt out of Grok training on my data?
On X: Settings and privacy → Privacy and Safety → Grok & third-party collaborators → uncheck the box to disallow using your data and posts for training. xAI also offers a Private Chat mode where conversations are not used for training. Opt-out is forward-looking only; submit deletion via the xAI Privacy Portal (x.ai/privacy-portal). Making an X account private excludes its posts from training.
Does Grok offer zero data retention (ZDR) or a DPA?
No general zero-data-retention guarantee for consumer Grok; data is retained until you request deletion. Private Chat keeps a conversation out of model training, but is not a contractual ZDR/retention guarantee. Enterprise/API terms differ.
Is Grok safe to use with confidential or proprietary data?
It depends on your plan tier. Grok conversations (all consumer users): Prompts and interactions used to train models by default; disable in settings or use Private Chat to exclude a conversation. Public X posts (logged-in X users, non-EU): Your public posts feed Grok training by default; uncheck the Grok data-sharing box, or make the account private to exclude. EU public posts: Processing of EU public posts for Grok training was permanently suspended after the Irish DPC settlement. Always confirm current terms with xAI before sending confidential data — this is cited public information, not legal advice.
Sources
https://x.ai/legal/privacy-policy
https://x.ai/legal/faq
This page is cited public information, not legal or compliance advice. Whether Grok trains on your data, and any zero-retention or DPA option, can depend on your specific plan, region and contract. Always confirm current terms with xAI before sending confidential or proprietary data.