setFallbackProvider

Optional secondary provider used to transparently retry a request when the primary fails in a way a retry on the same model can't fix — a content-filtered or refused response, or a transient outage (unreachable endpoint, server error, rate limit). The fallback's connection (endpoint, key, model) is read from that provider's settings class, so configure it alongside the primary's. Failover is per request and transparent to the result.

Parameters