trying to get genuine zero data retention agreements is one of the most exhausting things to do because data retention policies are so opaque or non-existent.

aws, azure, cohere, mistral etc on here are all linked to generic privacy policies, it is impossible to tell what retention sla is in place.

to the credit of openrouter, they do state the data retention policies of almost all, but not all of their providers.

you can check the retention level for models on openrouter with the providers list. i was not able to find a retention policy for their plugin providers (exa and parallel). both log by default with enterprise opt in for zdr.