Model variants
The :zdr suffix and other variants on a model id: meaning, price and errors.
A model id may end in :variant, for example deepseek-v4.1-flash:zdr. The variant is split at the last : and contains only lowercase letters, digits and hyphens (16 characters at most).
A variant is a model of its own: it has its own price, and its rows on the Usage page use the full id. The variants available are listed on the Models page in the console.
:zdr (zero data retention)
A :zdr variant is only sent to providers that commit to not storing prompts and answers. If all of those providers fail, the answer is upstream_unavailable; the request is never moved to an ordinary provider.
Exception: a provider may keep content that is flagged by a scan required by law. sivcloud itself does not store the content of prompts or answers for any model, with or without a variant. See Data and privacy.
Price
The price of a variant may differ from its base model. Check the price on the Models page before you use it.
Unknown variant
A variant that is not registered is answered with model_not_found. A variant is never silently served as its base model. See Errors.