A letter criticizing this company for operating at “half the effectiveness” and “self-sabotag[ing] and squander[ing] effort” was written by a former employee who founded Keen Technologies. After three days, this company took its AI for scientific knowledge, Galactica, offline. John Carmack was employed by a division of this company known as Reality Labs. (*) PyTorch was developed by this company, which defined one of its labs’ goals as bringing “personal superintelligence to everyone.” (-5[1])After a large investment in Scale AI, this company appointed Alexandr Wang to lead its “Superintelligence Labs.” This company’s chief AI scientist Yann LeCun oversaw the development of its Llama (-5[1])models. For 10 points, name this company led by Mark Zuckerberg. ■END■ (10[3])