Generative AI gobbles up reams of computing power, amplifying the urgency of Meta's capacity scramble, said five of the sources.
Executives also that spring set about reorganizing Meta's AI units, naming two new heads of engineering in the process, including Janardhan, the author of the September memo.
According to four of the sources, Meta did not prioritize building generative AI products until after the launch of ChatGPT in November.
Zuckerberg announced a new top-level generative AI team in February that he said would "turbocharge" the company's work in the area.
Carvill, the Meta spokesperson, said the company has been building generative AI products on different teams for more than a year.