ai-hallucination-term-coined-1986-mjolsness-computer-vision
IN premise — summaries/2026/08/24/wiki-Hallucination_artificial_intelligence-chunk-1.md
Created 2026-08-24T17:11:11+00:00
The term 'hallucination' in AI was introduced in Eric Mjolsness's 1986 PhD thesis in the context of computer vision (face hallucination), not in NLP or chatbot contexts.
Summary
The word "hallucination" in AI isn't new jargon from the chatbot era; it was coined in 1986 by a computer-vision researcher describing a model inventing facial details that weren't in the image. This matters because it reframes "AI hallucination" as a decades-old failure mode across modalities, not a uniquely generative-AI problem, and it grounds any discussion of the term in its original technical context rather than the popular LLM framing.