Concepts & capability filters
behavior
Hallucination
Hallucination refers to large language models generating plausible but factually incorrect or fabricated information, often confidently presented as true.
- Category
- behavior
- Difficulty
- Not classified
- Aliases
- None tracked
- Last reviewed
- 2026-07-02
Key facts
- It arises from gaps in training data or overgeneralization and is mitigated by techniques like RAG or grounding.