Anthropic obtains personal data from third party sources in order to train our models. Specifically, we train our models using data from the following sources: Publicly available information via the Internet; Datasets that we obtain through commercial agreements with third party businesses; Data that our users or crowd workers provide, including Inputs and Outputs from our Services (unless users opt out).
People who have never signed up for Claude may have had their personal data — published online or sold by a data broker — incorporated into Claude's training dataset without their knowledge or consent.
Anthropic collects your conversation content (prompts and AI responses), device identifiers, browsing behavior, and any personal data you include in messages to Claude, and may use this data to train its AI models. Users who opt out of model training should be aware that conversations flagged for safety or policy review can still be used for training without their consent, representing a meaningful limitation on the opt-out right. You can opt out of having your conversations used for model training by navigating to your Claude.ai account settings, or submit a data deletion request by emailing privacy@anthropic.com.