AI terms starting with H
Every term in this glossary whose name begins with H, each with a one-paragraph definition you can read without opening the page.
Terms
AI terms starting with H
hallucination
Fluent, confident output that the input does not support, delivered in the same tone as a correct answer.
harness
The program around the model: it owns the loop, the tools and the state, and resends everything each call.
hybrid search
Runs BM25 and dense-vector retrieval against the same query and fuses the two ranked lists with RRF or a weighted score sum, so exact tokens and semantic paraphrases both surface in the top-k.