Retrieval finds relevant material from a database, document set, search system, or tool and places it in the task context. Grounding means constraining or supporting an output with specified evidence or environment.
A retrieval-augmented system usually searches first and generates second. Citations and quoted passages can make support inspectable when implemented well.
Example
Answering from a handbook
The system finds the current leave-policy section, answers from that passage, and links the exact page for review.
Important limit
A source can be wrong or misused
Retrieval may select stale, irrelevant, unauthorized, or contradictory material; the generator may still overstate what it says.
Interactive model
Separate before deciding
Selected layerRetrieval
Selects material to supply.
Read the complete text alternative
RetrievalSelects material to supply.
GroundingConnects claims or actions to an evidence base or environment.
Useful distinctions
Separate the questions before judging
Retrieval
Selects material to supply.
Grounding
Connects claims or actions to an evidence base or environment.
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