Mistral today announced that it has raised €3 billion in a Series D funding round at a post-money valuation of more than €21 billion, the largest equity fundraising round ever completed by a European technology company, three years after the company's launch.

Samsung Electronics led the round, joined by co-leads Scaleup Europe Fund, managed by EQT, and existing investor PSG Equity.

The round will significantly expand Mistral's frontier research, which is the foundation underpinning its infrastructure, products and sovereignty. While allowing Mistral to scale its compute capacity for training powerful models, it will help Mistral expand infrastructure and accelerate its commercial growth and international footprint. The company now operates across 20 countries and supports 125+ global enterprises’ mission-critical AI transformation, including Airbus, ASML, and HSBC.

During the first wave of generative AI, the central question was who could build the most powerful model.…