Name or alias of the foundation model to use. When using IBM's watsonx.ai Model Gateway (public preview), you can specify any supported third-party model—OpenAI, Anthropic, NVIDIA, Cerebras, or IBM's own Granite series—via a single, OpenAI-compatible interface. Models must be explicitly provisioned (opt-in) through the Gateway to ensure secure, vendor-agnostic access and easy switch-over without reconfiguration.
For more details on configuration and usage, see IBM watsonx Model Gateway docs
model: str | None = None