LeCun revisits Galactica: pulled after 3 days of backlash, ChatGPT arrived 3 weeks later

ylecun · x · 2026-09-26

LeCun resurfaced Meta's Galactica saga: the 120B-parameter Meta-FAIR science-writing system was open sourced but its demo was pulled after just three days amid a mob of critics (including Michael Black) claiming it would destroy science. Three weeks later ChatGPT launched to rave reception, and the critics went silent, LeCun notes, linking MIT Technology Review's coverage.

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