OpenAI has lost a lot of top leadership lately, but they're gaining a big one: a top AI researcher from Microsoft. In the wake of several high-profile exits, Microsoft's Sebastien Bubeck is joining the OpenAI team,

After many departures, OpenAI is finally getting a new addition: Sebastien Bubeck is joining the AI company from Microsoft.

High-profile exits from OpenAI, and now Microsoft, signal fierce competition for AI talent as big tech companies race toward developing artificial general intelligence (AGI), with top executives shifting between industry leaders.

His role at Open AI, reported, has not been specified, but his departure points out the close working relationship and talent exchange shared between the two entities.

The development follows a series of departures from OpenAI, including that of longtime chief technology officer Mira Murati in September.

Bubeck's departure follows his contribution to Microsoft's development of Phi LLMs — more compact models compared to traditional large language models (LLMs).

Sebastien Bubeck, Microsoft's Vice President of GenAI research, is leaving to join OpenAI. While his role at OpenAI is not disclosed, Microsoft maintains their collaboration through Bubeck's new position.