The Galactica model from Meta was taken offline just three days after its release due to hallucination issues, with LeCun expressing regret. Galactica is regarded as an early attempt at large language models, positively influencing Meta's subsequent projects. The model's lead author, Ross Taylor, admitted that the foundational model was not thoroughly checked prior to release, but he still emphasized its research value. Joelle Pineau, Vice President of AI Research at Meta, highlighted that Galactica was a research project, not a product. The removal of Galactica has sparked significant discussion.