Backfrom Sail Research’s own policies · verified 2026-09-02 · some facts not published
Sail Research: data residency & retention
Headquarters
🇺🇸 United States (US)
Where inference runs
Not disclosed
Privacy policy says only 'Our Website is hosted in the United States' and that data may be transferred to other countries for storage/processing; no disclosure of where API inference runs.
Region pinning
Not disclosed
No residency or region-pinning controls published.
Prompt retention
Retained · not disclosed
ToS states Sail 'may store responses and that the ability to disable such storage is not currently available'; privacy policy retention is open-ended ('as long as reasonably necessary', plus backups/fraud/legal).
Trains on API data
No
ToS: will not use customer data 'to train, fine-tune, or improve any artificial intelligence or machine-learning model' except with express opt-in consent or as necessary to provide the Services; de-identified/aggregated data may be used to improve the Services.
Zero data retention
Not offered
Explicitly unavailable: 'the ability to disable such storage is not currently available.'
Compiled from Sail Research’s published privacy policy, terms, and documentation on 2026-09-02. “Not disclosed” means Sail Research publishes nothing on the point. Policies change without notice, so verify against the sources above before relying on this for compliance decisions.