Yes, the Galactica LLM by Meta. Though LeCun isn't an author in the paper, he is "Chief AI Scientist for Facebook AI Research (FAIR)"[0], and he was quite angry about closing the Galactica demo[1].

[0] https://ai.facebook.com/people/yann-lecun/

[1] https://twitter.com/ylecun/status/1593293058174500865