---
title: "AI hallucination | Woven Legal"
description: "A fluent but unsupported or incorrect output produced by an AI system."
url: https://wovenlegal.multisites.ai/glossary/ai-hallucination
publisher: Woven Legal
phone: 
quote: https://wovenlegal.multisites.ai/contact
---

# AI hallucination

A fluent but unsupported or incorrect output produced by an AI system.

A hallucination is a quality and risk event, not a strange writing style. A safe workflow assumes generated text can be wrong. Require source checking, cite authorities from the firm library, compare key names and dates, and route legal conclusions to a lawyer. The ABA Formal Opinion 512 explains that generative AI can produce plausible outputs without a factual basis. A workflow audit should identify where a hallucination could reach a client or court, then add a stop and review step.

## Related terms

-   [verification](https://wovenlegal.multisites.ai/glossary/verification)
-   [quality assurance](https://wovenlegal.multisites.ai/glossary/quality-assurance)
-   [generative AI](https://wovenlegal.multisites.ai/glossary/generative-ai)

### Sources

-   [ABA Formal Opinion 512](https://www.americanbar.org/content/dam/aba/administrative/professional_responsibility/ethics-opinions/aba-formal-opinion-512.pdf)

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