Does Grok (grok.com / Grok app) train on your data?
Trains by default
Trains on business data unless you opt out.
xAI says it may use your prompts and Grok's replies to train its models and that you control this with the "Improve the model" setting; once you deselect it, new conversations are not used. The FAQ does not literally say "on by default", but it describes training as the normal case until you opt out. Logged-out users in some regions (not EU/UK) cannot opt out. Grok inside the X app is covered by X's own settings, not checked here.
Why this matters: Data used for training can't be pulled back out of a trained model, so opting out only protects what comes after. Why training matters →
Covers: Free, SuperGrok. Compliance fields (SOC 2, ISO, DPA, BAA) have not been checked yet for personal plans.
Personal vs business plan
The same assistant can have different data terms depending on the plan. Here is Grok (grok.com / Grok app) next to Grok Business / Enterprise & xAI API.
| What we checked | Personal Grok (grok.com / Grok app) | Business Grok Business / Enterprise & xAI API |
|---|---|---|
| Trains on your data by default | Yes, opt-out | No |
| Data retention | Kept until you delete it | Deleted within 30 days of the session (custom retention available) |
| Data location / residency | Unknown | Unknown |
| SOC 2 Type II | Not checked yet | Yes |
| DPA available | Not checked yet | Yes |
| BAA / HIPAA | Not checked yet | Yes |
See the business plan: Grok Business / Enterprise & xAI API → Full side-by-side comparison
Trains on your data by default
xAI says it may use your prompts and Grok's replies to train its models and that you control this with the "Improve the model" setting; once you deselect it, new conversations are not used. The FAQ does not literally say "on by default", but it describes training as the normal case until you opt out. Logged-out users in some regions (not EU/UK) cannot opt out. Grok inside the X app is covered by X's own settings, not checked here.
- x.ai/legal/faq · checked Oct 18, 2026
“We may use your content and interactions with Grok (e.g., prompts, searches, and other materials you submit) along with Grok's responses to train our models.”
- x.ai/legal/faq · checked Oct 18, 2026
“Once you select that your data should not be used for training, your new conversations will not be used to train our models.”
- x.ai/legal/faq · checked Oct 18, 2026
“As a result, in some regions (excluding the EU/UK), when you use Grok without logging in, you won’t have the option to opt out of model training.”
Can you turn training off?
Deselect "Improve the model" (app: Settings > Data Controls; grok.com: Settings > Data). Feedback you send may still be used for training.
- x.ai/legal/faq · checked Oct 18, 2026
“On the mobile app, to select or deselect using your content for model training, go to Settings, Data Controls, and select or deselect “Improve the model.””
- x.ai/legal/faq · checked Oct 18, 2026
“For the Grok.com website, you can go to Settings, Data, and then “Improve the Model” to select whether your content is used for model training.”
- x.ai/legal/faq · checked Oct 18, 2026
“Please note that, even if you opt out of model training, when you subsequently decide to voluntarily provide feedback, that feedback may be used for training purposes.”
Data retention
You keep conversations as long as you want; retention otherwise follows the privacy policy's 'ongoing legitimate business need'.
- x.ai/legal/faq · checked Oct 18, 2026
“You can keep your data on your SpaceXSI account for as long as you wish.”
- x.ai/legal/privacy-policy · checked Oct 18, 2026
“We retain your personal information where we have an ongoing legitimate business need to do so.”
Retention after you delete
- x.ai/legal/faq · checked Oct 18, 2026
“If you delete conversations from your account or if you use Private Chat, conversations will be removed from our systems within 30 days, unless they have been de-identified or pseudoanonymized and disassociated from your account or we have to retain them for safety, security, or legal reasons.”
Human review of chats
Including for improving model performance.
- x.ai/legal/faq · checked Oct 18, 2026
“A limited number of our authorized personnel may review your conversations with Grok for specific business purposes, including improving model performance, investigating security incidents and potential misuse of our services, and complying with our legal obligations.”
Temporary / incognito chat
Ghost icon, top right. Not in history, not used for training, deleted within 30 days.
- x.ai/legal/faq · checked Oct 18, 2026
“To activate Private Chat, look at the top right corner of your screen for the ghost shaped icon. When using Private Chat, your conversation history will not be viewable to you and will be deleted from SpaceXSI systems within 30 days.”
- x.ai/legal/faq · checked Oct 18, 2026
“When using Private Chat, where available, your content and interactions are not used for model training.”
Data location
The consumer privacy policy checked does not state where Grok data is stored. x.ai pages now name the operating company "SpaceXSI"; quotes keep that wording.
SOC 2 Type II
Not checked in this personal-plan research pass (consumer/business compliance docs not reviewed).
ISO/IEC 27001
Not checked in this personal-plan research pass (consumer/business compliance docs not reviewed).
ISO/IEC 42001
Not checked in this personal-plan research pass (consumer/business compliance docs not reviewed).
DPA available
Not checked in this personal-plan research pass (consumer/business compliance docs not reviewed).
BAA / HIPAA
Not checked in this personal-plan research pass (consumer/business compliance docs not reviewed).
Zero-retention option
Not checked in this personal-plan research pass (consumer/business compliance docs not reviewed).
How to turn off training in Grok (grok.com / Grok app)
Deselect "Improve the model" in Grok's data settings, or use Private Chat.
Web and desktop
- On grok.com, open Settings.
- Go to Data.
- Deselect "Improve the Model".
Mobile
- In the Grok app, open Settings.
- Go to Data Controls.
- Deselect "Improve the model".
Keep in mind
- Applies to new conversations after you change it.
- Feedback you send may still be used for training.
- Using Grok logged out: no opt-out in some regions (not EU/UK).
- Grok inside X is controlled by X's settings, not these.
- x.ai/legal/faq · checked Oct 18, 2026
“On the mobile app, to select or deselect using your content for model training, go to Settings, Data Controls, and select or deselect “Improve the model.””
- x.ai/legal/faq · checked Oct 18, 2026
“For the Grok.com website, you can go to Settings, Data, and then “Improve the Model” to select whether your content is used for model training.”
- x.ai/legal/faq · checked Oct 18, 2026
“Once you select that your data should not be used for training, your new conversations will not be used to train our models.”
Vendor pages we monitor for this tool
We save a fingerprint (SHA-256 of the page's visible text) on every check so we can spot when a vendor edits its terms.
| Page | Checked | Fingerprint |
|---|---|---|
| https://x.ai/legal/faq | Oct 18, 2026 | c0b9807b5bbb… |
| https://x.ai/legal/privacy-policy | Oct 18, 2026 | 6f4afd2bf1f7… |
Compare with
- ChatGPT (Free / Plus / Pro) Trains by defaultPersonal
- Claude (Free / Pro / Max) You choose at signupPersonal
- Gemini app (personal Google account) Trains by defaultPersonal
- Microsoft Copilot (personal Microsoft account) Depends on app versionPersonal
- Amazon Q Business Doesn't train
- ChatGPT Enterprise / Business Doesn't train
See all Assistant tools · Why AI training on your data matters · How we source and verify this