xAI API
xAI says it never trains on API inputs or outputs without explicit permission. By default it stores requests and responses encrypted at rest for 30 days for audit purposes, with team-level Zero Data Retention available.
API inputs and outputs are not used for training without explicit permission.
No training opt-out is required for the stated baseline. Team admins can enable Zero Data Retention; the Responses API also documents store:false for local request and response history.
API inputs and outputs are stored by default for auditing. Stateful Responses API conversations may be retained for 30 days unless storage is disabled.
Default API request and response audit retention is 30 days. Zero Data Retention prevents prompts and outputs from being persisted to disk but disables dependent features.
Retention is stated to support suspected-abuse or misuse auditing; the public FAQ does not specify ordinary human review of every request.
Foundational reference pages for teams adopting, deploying, and operating production AI with inspectable controls.