Mistral received 3 billion euros in Series D financing, fully turning to Europe’s sovereign open-source AI strategy

On September 8, 2026, the artificial intelligence company Mistral announced the completion of its D-round financing, raising 3 billion euros, with a post-funding valuation exceeding 21 billion euros. This financing aims to help Mistral establish itself as a leading player in AI technology with open-source weights. To adapt to the European market operating environment, Mistral has officially adjusted its strategic direction. Starting as an open-source weight startup, it now focuses on developing AI technologies that meet EU regulations and data sovereignty requirements. This shift ensures that its technology deployment strictly follows European legal frameworks, strengthens control over local data, and builds an independent ecosystem separate from global public cloud giants.