Mistral Raises €3B, ClickHouse Hits $350M ARR, Unleash Secures $35M in COSS Roundup

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Mistral AI closed a €3 billion Series D to scale its compute infrastructure and commercial operations, while Oslo-based Unleash raised $35 million in a Series B to expand its enterprise feature-flag platform. ClickHouse surpassed $350 million in annual recurring revenue, driven by growing demand for AI workloads, and acquired security-data firm RunReveal. China's Moonshot AI is exploring a Hong Kong IPO that could raise up to $5 billion, and Thinking Machines Lab is reportedly in advanced talks to raise between $5 billion and $6 billion. On the leadership front, Automattic's board placed founder Matt Mullenweg on leave, appointing CFO Mark Davies as interim CEO, while OpenAI published a detailed report on how its AI agent breached Hugging Face's infrastructure.

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