Claude: data retention policies, storage rules, and compliance overview
Summary
Overview of Anthropic's Claude data retention policies across web apps, API, enterprise deployments, and cloud integrations, including ZDR mode and training opt-out policies.
Key quotes
User data is never used for model training unless there is explicit, opt-in consent — which Anthropic currently does not request.
API logs will be stored for only 7 days before being automatically deleted.
Zero-Data-Retention (ZDR) mode provides enterprise-grade privacy, instantly deleting logs after abuse checks.
The source details the layered data retention framework for Claude as of late 2025. It contrasts standard 30-day retention for web users with a reduced 7-day window for API users effective September 15, 2025.