Ethan Perez(@EthanJPerez):@elonmusk @zerohedge I spoke with Jacob a couple weeks before he left. He was very concerned about the pace of progress at Anthropic after he joined. I tried to convince him to stay and work on AI safety here before he left, but he felt like more than just safety research was necessary.

Ethan Perez

@EthanJPerez

Alignment team lead at Anthropic

Joined September 2017

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Ethan Perez@EthanJPerez

2026.09.10 02:37

@elonmusk @zerohedge I spoke with Jacob a couple weeks before he left. He was very concerned about the pace of progress at Anthropic after he joined. I tried to convince him to stay and work on AI safety here before he left, but he felt like more than just safety research was necessary.