Claude (Free/Pro) — privacy & data policy

Provider: Anthropic. PromptPrivacy score: 64/100. Last verified July 26, 2026.

What happens to your data?

Anthropic collects your account information, chat inputs, and usage data to provide their services and train their AI models. Your data may be shared with service providers and affiliates, and while you can opt out of training, your information is otherwise used to improve their systems and enforce safety policies.

Does it train on your data?

User inputs and outputs are used to train and improve models by default, unless the user opts out through account settings.

Can you opt out?

Yes, you can opt out of having your inputs and outputs used for model training through your account settings.

Data retention

Retained for as long as reasonably necessary for the purposes outlined; individual deleted conversations are removed from back-end systems within 30 days.

Encryption & security

The policy states they implement appropriate technical and organizational security measures to protect personal data, but does not specify encryption standards or certifications.

Is it safe for work?

Not specified; the policy notes that business/enterprise offerings are governed by separate customer agreements, which may offer different protections than this standard consumer policy.

Source policy: https://www.anthropic.com/legal/privacy