A new benchmark found Mistral AI’s models scored below 40% in detecting Russian propaganda, adding to earlier concerns that the company’s chatbot repeated Russian disinformation about half the time. The findings sharpen questions over Europe’s AI credibility and suggest the issue could extend beyond content moderation into investor concerns about governance, product reliability and the broader viability of open-source AI models. The reported weakness may also complicate Mistral AI’s funding efforts and invite closer regulatory scrutiny of how chatbots identify and filter false or manipulated narratives.