Laurent Sifre, cofounder of the Paris‑based AI agent startup H, has joined Microsoft as a Principal Researcher in its AI+Research group, effective June 2024. H, founded in early 2023 by former DeepMind researchers, raised a €120 million seed round led by Bpifrance and Eurazeo to build foundation models for enterprise automation. Sifre will work on multimodal AI and large‑language model safety within Microsoft’s Redmond‑based research organization while maintaining a presence at the company’s new AI hub in Paris.

Sifre’s background includes key contributions to DeepMind’s AlphaFold and Gato projects. His departure follows a series of high‑profile exits from European AI labs, including Mistral AI’s chief scientist moving to Google DeepMind and Aleph Alpha’s senior researchers joining Amazon’s AGI team. Microsoft’s EU AI hub, launched in late 2023 to strengthen local talent ties, now gains a marquee hire that bolsters its scientific credibility in the region.

The move underscores a structural imbalance: US tech giants can outbid European startups for elite talent thanks to deeper cash reserves, global scale, and equity upside, weakening Europe’s ambition to create sovereign AI champions. It also signals Microsoft’s intent to deepen its European AI footprint, using local expertise to improve model performance and to curry favor with EU regulators wary of non‑transparent AI development.

Second‑order effects could reshape the continent’s innovation landscape. Venture capitalists may grow wary of early‑stage AI bets, fearing rapid talent poaching, while governments may feel pressure to introduce stronger retention tools—such as enhanced tax incentives for stock options, targeted research grants, or reformed non‑compete enforceability. For Microsoft, securing Sifre accelerates its foundation‑model research pipeline and may help align its AI offerings with forthcoming EU AI Act requirements.

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