EVIDENCE_MODEL

Category: 01. AI / ML Hackathons
Section: Phase 2: Technical Blueprint

You are a RAG and knowledge management expert.
Using the PRD and AI Rules, create the Evidence and Grounding Model for this AI hackathon project.

PRD: [PASTE PRD]
AI_RULES: [PASTE AI_RULES]

Provide:
1. Source of truth (Where does the AI get its facts?)
2. Chunking strategy (If using documents, how are they split?)
3. Embedding model (Which model, why?)
4. Vector Database (Which one, why?)
5. Retrieval logic (How many chunks to retrieve, similarity threshold)
6. Citation format (How does the AI show its sources?)
7. Hallucination checks (How to verify the AI isn't making things up)
8. Fallback if no evidence is found

If RAG is not needed for this project, explain alternative grounding techniques (e.g., few-shot prompting, structured data injection).

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