Does DeepSeek train on your data?
DeepSeek by DeepSeekAI assistantsVendor's pages read on
By default, yes, according to the vendor's published terms.
The vendor states that inputs are used for training by default on DeepSeek chat (app and web). The vendor states that an opt-out is available. Read on 12 Nov 2026. The plan your company actually holds, and any negotiated terms, decide what applies to you.
This page is short: 2 facts have been read and sourced for DeepSeek so far. Everything else is listed below as unknown.
A summary of what the vendor publishes, not legal advice, not an assessment of the vendor and not an endorsement. How this page was made.
What the vendor states, plan by plan
| Plan | Trains on your data | Default retention | Human review of inputs | Single sign-on |
|---|---|---|---|---|
| DeepSeek chat (app and web)Consumer / free | Yes by default; opt-out available | As long as necessary (no fixed period stated) | Unknown | Unknown |
“Unknown” means the vendor's page that would answer this was not read, or could not be opened. It does not mean “no”.
DeepSeek chat (app and web)
On DeepSeek chat (app and web), the vendor states that inputs are used for training by default and that an opt-out is available. Retention: as long as necessary (no fixed period stated). Not verified: human review of inputs.
- Trains on customer data
- Yes by default; opt-out available
The policy lists a right to opt out of the use of personal data for training; how it applies depends on where you live.
“To improve and develop the Services and to train and improve our technology, such as our machine learning models and algorithms.”
The vendor states this on cdn.deepseek.com, read on 12 Nov 2026
- Default retention
- As long as necessary (no fixed period stated)
“We retain Personal Data for as long as necessary to provide our Services and for the other purposes set out in this Privacy Policy.”
The vendor states this on cdn.deepseek.com, read on 12 Nov 2026
Unknown for this plan: Zero-retention option; Deletion on request; Human review of inputs; Single sign-on (SSO); SCIM provisioning; Audit logs; Admin console; Data residency options; Customer-managed keys.
Attestations and company facts the vendor states
- Company headquarters
- China
“provided and controlled by Hangzhou DeepSeek Artificial Intelligence Co., Ltd., with its registered address in China”
The vendor states this on cdn.deepseek.com, read on 12 Nov 2026
- Data processing location
- May be stored outside the user's country (location not named in the sentence read)
“The Personal Data we collect from you may be stored on a server located outside of the country where you live.”
The vendor states this on cdn.deepseek.com, read on 12 Nov 2026
“Yes” means the vendor's page says so, with the page linked. GhostAudit has not audited the vendor. Scope by product is on the vendor's page.
What remains unknown
- Zero-retention option
- Deletion on request
- Human review of inputs
- Single sign-on (SSO)
- SCIM provisioning
- Audit logs
- Admin console
- Data residency options
- Customer-managed keys
- SOC 2 Type II
- ISO/IEC 27001
- ISO/IEC 42001
- HIPAA BAA available
- FedRAMP
- GDPR DPA available
- Model providers used
None of these was guessed, inferred from another vendor or filled from memory. Ask the vendor, using the list below.
- Trains by default on the consumer plan. Applies to: DeepSeek chat (app and web). Employees using personal accounts are on these terms.
- No DPA found in this review. The vendor pages read for this card did not include a data processing agreement. Many vendors publish one or provide it on request: ask the vendor.
- Enterprise controls not verified. SSO, SCIM and audit logs have not been checked for this tool yet.
How to check DeepSeek in your own company
- 01Find out which plan each account is on. People who signed up with a personal address are on the personal terms, whatever the company bought.
- 02Open the account or administrator settings and look for the data-controls or model-training setting the vendor's page describes. Note what it is set to today and who is able to change it.
- 03Read the vendor's own page, linked under each fact below, and check that the sentence quoted here is still there. Pages change; the date shows when this one was read.
- 04Compare with your contract or order form. Where a data processing agreement or negotiated terms exist, they take precedence over the public pages.
- 05Record the plan, the setting and the date in your AI inventory, so that the answer exists the next time a customer or auditor asks.
What to ask the vendor
Neutral questions for the points the vendor's public pages left open. Ask for the answer in writing.
- 01Is a zero-retention option available on our plan, and what does it exclude (for example abuse monitoring logs)?
- 02How do we request deletion of our data, and within how many days is it completed, including backups?
- 03Can your staff or contractors read our inputs? In which cases, and is that access logged?
- 04Is single sign-on available on our plan, and can sign-in with personal accounts be blocked for our domain?
- 05Is SCIM provisioning available, so that leavers lose access automatically?
- 06Are audit logs available to administrators, and can they be exported to our security tooling?
- 07Is there an administrator console where data controls can be set for every account in our organisation?
- 08Where is our data processed and stored, and can a region be chosen?
- 09Can we hold the encryption keys for our data?
- 10Do the statements on your public pages apply to our contract as written, or do negotiated terms override them?
Questions about DeepSeek
- Does DeepSeek train on your data?
- By default, yes, according to the vendor's published terms. The vendor states that inputs are used for training by default on DeepSeek chat (app and web). The vendor states that an opt-out is available. Read on 12 Nov 2026. The plan your company actually holds, and any negotiated terms, decide what applies to you.
- Is DeepSeek safe to use at work?
- GhostAudit does not rate tools. Whether DeepSeek is acceptable for your company depends on the plan you hold, the data people put into it and your own policy. This page records what the vendor states, with the wording and the source, so that decision can be made on facts: DeepSeek chat (app and web): yes by default; opt-out available (training on customer data).
- How long does DeepSeek keep data?
- The vendor states: As long as necessary (no fixed period stated). This is the default the vendor's page describes for one plan; other plans may differ, and the table on this page shows each.
- When were these facts checked, and how do I report an error?
- The vendor's pages were read on 12 Nov 2026. Every quotation was checked against the stored text of its source page on that date. To report an inaccuracy, email [email protected] with the page that shows the current wording.
How this page was made, and how to correct it
Every fact above is a statement found on a page DeepSeek itself publishes. The page was fetched and reduced to text, the statement was recorded with its exact wording, and the quotation was checked against the stored text of the page. Quotations are at most 25 words. Search results, blogs and third-party summaries were not used.
These are summaries of statements the vendor publishes, as read on the date shown. They are not legal advice, not an assessment of the vendor and not an endorsement. Vendors change their terms: open the linked source and check your own contract before you rely on a statement.
Found an error, or are you the vendor? Report an inaccuracy with the page that shows the current wording. The page is re-read; the fact, its quotation and its date are corrected, or the fact is set to unknown if the page cannot be opened. The full method.
The vendor's official pages
- Privacy policycdn.deepseek.com
- Termscdn.deepseek.com
DeepSeek is a product of DeepSeek. GhostAudit is not affiliated with, endorsed by or sponsored by DeepSeek.
Is DeepSeek in use at your company, and on which plan?
GhostAudit shows which AI tools your people use, from Google Workspace or Microsoft 365 and from the browser, and sets each one beside the terms on this page. It records tool names and time, never prompts.