Interface ParametricFactualityInput

Factuality Dimensions — inspired by Google DeepMind FACTS benchmark

Three orthogonal factuality axes:

1. Parametric factuality — accuracy of the model's internal knowledge
2. Search/retrieval factuality — accuracy when using RAG or search tools
3. Grounded factuality — accuracy when answering from provided context

Each dimension is scored 0-100 with evidence-based assessment.