Mistral, a French AI lab, has raised €3 billion at a €21 billion valuation in a Series D round led by Samsung, Scaleup Europe, and PSG Equity. The funding underscores growing investor appetite for AI companies positioned as alternatives to American incumbents, a trend described as the rise of sovereign AI. Source
OpenAI announced that it has solved the Navier–Stokes Millennium Prize Problem, one of several unsolved problems in mathematics. The company published an AI-generated solution along with a formal proof written in the Lean programming language. The claim has drawn accusations of impropriety from some academics, who question whether OpenAI's approach represents a genuine solution to the decades-old mathematical challenge. Source
Meta has unveiled Muse, a personal AI agent designed to compete with OpenAI's offerings in the consumer AI market. Muse seeks access to users' email, calendars, payment systems, health services, and social media accounts, positioning itself as a comprehensive digital assistant. The launch represents Meta's most ambitious consumer AI push and serves as a significant test of whether users will grant the company access to sensitive personal data after years of privacy controversies. Source
Anthropic has warned users that hackers are stealing Claude API tokens from subscriber accounts. The security issue came to light when a Claude user discovered his account was consuming tokens despite no active work. Anthropic did not disclose the full scope of the breach. Source
Google Cloud is expanding its enterprise AI strategy through a partnership with Accenture, betting on forward-deployed engineers to accelerate AI adoption and overcome deployment bottlenecks. The deal reflects Google's effort to catch up with competitors in the race to help enterprises operationalize AI systems at scale. Source