In a significant blow to OpenAI, Miles Brundage, a longtime policy researcher and senior advisor to the company's AGI readiness team, has announced his departure. Brundage cited his desire to have more freedom to publish research and advocate for responsible AI development in the nonprofit sector.

This move marks the latest in a string of high-profile exits from OpenAI, including CTO Mira Murati, chief research officer Bob McGrew, and research VP Barret Zoph, who all resigned in late September. The departures have sparked concerns about the company's direction and priorities, with some former employees accusing OpenAI of prioritizing commercial products over AI safety.

Brundage, who joined OpenAI in 2018, had focused on the responsible deployment of language generation systems like ChatGPT. In his farewell post, he urged remaining OpenAI employees to "speak their minds" and avoid groupthink in the company's decision-making process.

The news comes amidst a tumultuous period for OpenAI, with multiple former employees and board members speaking out against the company's priorities. The departures have raised questions about the company's ability to balance commercial success with responsible AI development.