More than 50 researchers and engineers have left Elon Musk’s rebranded SpaceXAI since February, according to The Information. Among those who departed are crucial leaders from coding, world models, and Grok voice teams.

The exodus has raised concerns, particularly about the company's commitment to developing leading AI models. At least 11 xAI employees have joined Meta, while seven more have gone to Mira Murati’s Thinking Machine Labs.

This brain drain follows Juntang Zhuang's exit and pre-training team departures, which have heightened worries among current staff. Pre-training is a critical stage in AI development, and its decline could indicate a broader shift in focus or commitment.

Musk’s notoriously demanding work culture has also been cited as a factor, with unrealistic deadlines reportedly leading some to leave.

While several exits may be driven by financial considerations, the scale of talent loss is concerning for those who see Musk's AI ambitions as pivotal to humanity's future.