Artificial intelligence · 1966
ELIZA
A 200-line pattern matcher playing a therapist convinces users it understands them.
Joseph Weizenbaum's ELIZA used keyword rules to reflect users' statements back as questions. People, including his secretary, confided in it, which gave the ELIZA effect its name. It was the first chatbot and an early lesson in how readily humans attribute minds.
What it built on 2
What it led to 1
Watch
Related measurements
The dashed line marks when it first worked.
Training compute of notable AI models Source: Epoch AI, Notable AI Models (CC BY 4.0)
Computation per constant dollar, 1850-2006 Latest: 7.3B million units of computer power per 2006 $ (2003) Source: Nordhaus 2007, Two Centuries of Productivity Growth in Computing, J. Econ. Hist. 67(1), Table 6