ByteDance AI chief Gu Quanquan departs after Seed 2.0 launch

Gu Quanquan, a renowned AI researcher who spearheaded foundational AI research at TikTok owner ByteDance, announced his departure from the company on social media on Tuesday. The move comes just four months after he helped oversee the release of ByteDance's latest flagship AI model, Seed 2.0. In his post, Gu thanked ByteDance leadership for "an incredibly rewarding journey" but did not reveal his next destination. His departure is particularly notable as ByteDance is increasingly pushing to monetize its core AI offerings, including subscription plans for its consumer AI app Doubao, which has grown to 336 million monthly active users.

Gu joined ByteDance in 2023 to oversee AI-for-science research, focusing on using AI to accelerate drug discovery. However, early last year—shortly after DeepSeek's breakthrough catalyzed China's domestic AI industry—he pivoted to become co-lead for model pre-training and scaling, directing ByteDance's effort to catch up in the frontier LLM race. Under his leadership, ByteDance released both Seed 2.0 and Seedance 2.0, its controversial video-generation model. Gu's departure creates a leadership vacuum at a critical juncture as ByteDance competes with other Chinese tech giants like Baidu, Alibaba, and Tencent to monetize AI at scale.