Mistral AI closed a €3 billion Series D on September 8 with Samsung Electronics as lead investor and Scaleup Europe Fund and PSG Equity as co-leads, lifting the valuation above €21 billion from €11.7 billion in September 2025.
Capital is earmarked for frontier research, training compute, and Mistral's first French data centre, with expansion planned across Europe, the Middle East, Asia, and North America. Mistral also confirmed a July deal with Microsoft to provide AI computing capacity to Microsoft's clients.