Does 21st train on your data?

No—21st's cited terms say it does not train on your data by default.

Their words · Privacy Policy

“ We use the information described above to: Provide, operate, secure, and improve the Services. Authenticate users, enforce account scopes, and prevent fraud, abuse, and unauthorized access. Process payments and manage subscriptions through our payment processor. Communicate with you about your account, transactional matters, security alerts, and (with your consent) product updates and marketing. Respond to support requests and feedback. Comply with legal obligations and enforce our Terms of Service. We do not use customer prompts, completions, or agent conversation content to train our own machine-learning models without your explicit consent.”

Captured 2026-09-24. Open captured source →Snapshot SHA-256: 3650e44a15785882a8e614f2fc9b25d7a40503f54c86195840d10404fe5afa53

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Informational only, not legal advice. Terms can change; check the cited policy and capture date before relying on this answer.

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