It’s only been since June that Meta invested $14.3 billion in the data-labeling vendor Scale AI, bringing on CEO Alexandr Wang and several of the startup’s top executives to run Meta Superintelligence Labs (MSL). But the relationship between the two companies is already showing signs of fraying.

At least one of the executives Wang brought over to help run MSL — Scale AI’s former Senior Vice President of GenAI Product and Operations, Ruben Mayer — has departed Meta after just two months with the company, two people familiar with the matter told TechCrunch. 

Mayer spent roughly five years with Scale AI across two stints. In his short time at Meta, according to those sources, Mayer oversaw AI data operations teams but wasn’t part of the company’s TBD Labs — the core unit within Meta tasked with building AI superintelligence, where top AI researchers from OpenAI have landed.