Model identifier exposed by the provider, for example gpt-4.1-mini.
Provider identifier to use for this evaluator, for example openai or anthropic.
To discover valid values for the current project, call GET /api/public/llm-connections and use one of the returned provider values.
Optional explicit model configuration for an evaluator.
If omitted, Langfuse uses the project's default evaluation model. If provided, the model must be available to the project when the evaluator or evaluation rule is enabled.
To discover valid configured
providervalues for a project, callGET /api/public/llm-connectionsand read theproviderfield from the returned connections. Use aprovidervalue that matches one of the connections already configured in the same project.Recovery guidance:
422withcode=evaluator_preflight_failed, either provide a valid explicitmodelConfighere or configure the project's default evaluation model, then retry the same request.Example