NAVIGATION
Definition

Hallucination

Hallucination is a phenomenon where a Large Language Model (LLM) generates outputs that are factually incorrect, nonsensical, or ungrounded in real-world data. It occurs because LLMs predict word probabilities rather than referencing a direct database of facts.

Frequently Asked Questions

Why do LLMs hallucinate?

Because they are designed to prioritize fluent, human-like generation based on statistical probabilities rather than lookup facts.

How can you reduce hallucination?

By using techniques like RAG (Retrieval-Augmented Generation), self-reflection prompts, and strict system instructions.

Quick Facts

  • CategoryModel Limitations
  • Key ApplicationOutput verification, prompt safety filters, and grounding checks

Coverage Trend12 Weeks

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Related AI Terms

Hallucination Media Coverage & Intelligence

arXiv AIJun 18, 2026

CaVe-VLM-CoT: An Interpretable Vision-Language Model Framework

Vision-Language Models (VLMs) remain prone to hallucinations, producing fluent but visually unfaithful outputs. Existing chain-of-thought and retrieval-augmente

TechCrunch StartupsJun 16, 2026

Probably raises $9M to build a more reliable kind of AI

Probably wants to prevent hallucinations and factual errors from reaching users, and achieve accuracy on par with deterministic systems.

TechCrunch AIJun 13, 2026

KPMG pulls report on AI usage due to apparent hallucinations

Once again, AI proves to be an unreliable source of information about AI.

VentureBeatJun 12, 2026

Google researchers introduce 'faithful uncertainty,' allowing LLMs to offer best guesses instead of hallucinations

Large language models continue to struggle with hallucinations, presenting a major roadblock for real-world enterprise applications. Reducing these errors is a

arXiv AIJun 5, 2026

Cascading Hallucination in Agentic RAG: The CHARM Framework for Detection and Mitigation

Multi-step agentic retrieval-augmented generation (RAG) pipelines have demonstrated significant capability for c