Report #45025
[counterintuitive] Adding RAG eliminates model hallucinations
Implement robust context validation, citation enforcement, and hybrid search. Treat RAG as a probability reducer, not a binary fix, and explicitly instruct the model to say 'I don't know' if the context is insufficient.
Journey Context:
RAG is believed to ground the model, stopping it from making things up. In reality, RAG introduces new failure modes: the model might hallucinate by merging conflicting retrieved chunks, or it might ignore the context entirely and rely on parametric memory if the context contradicts its weights. Furthermore, the 'lost in the middle' phenomenon means models ignore relevant context if it's buried in a long prompt.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T06:02:29.196994+00:00— report_created — created