Does DeepSeek train on your data?
NoDeepSeek (Hangzhou DeepSeek Artificial Intelligence) · AI assistants
By default it can. On the consumer tier DeepSeek uses your inputs to improve models unless you opt out. Its business tier typically does not.
What we checked
This assessment separates the consumer product from any business plan. It uses the vendor documents linked below; an unverified item is not a pass.
- Default data training
- Opt-out required
- DeepSeek's privacy policy states it uses user inputs to train and improve its machine-learning models by default, while granting users a right to opt out of having their personal data used for training.
- Business-tier training
- Not verified
- DeepSeek publishes no separate business/API privacy terms or DPA confirming a no-training default for paid API usage; third-party sources claim paid API data is excluded from training, but this is unverified against official vendor documentation.
- Training control
- Confirmed
- DeepSeek (Hangzhou DeepSeek Artificial Intelligence) documents a training control. Confirm whether it is enabled centrally or must be set by each user.
Practical risk: The hosted DeepSeek app and API store user prompts and personal data on servers in the People's Republic of China (subject to Chinese law) and use inputs to train models by default. This is a major governance risk that has led to government bans and restrictions in Italy, South Korea, Australia, and multiple US federal agencies.
How to make a decision
Check the precise account tier, written contract and intended data before approving DeepSeek. A security certification, DPA or setting can apply to only part of a vendor's service. Keep the source links with your supplier review and revisit them when the vendor changes its terms.
More on DeepSeek
Is DeepSeek HIPAA compliant?Is DeepSeek GDPR compliant?Is DeepSeek SOC 2 compliant?Is DeepSeek ISO 27001 certified?
See the full DeepSeek risk profile, with every data-handling fact and its source, or browse all rated AI tools.