COSS Weekly: Unleash raises $35M, Mistral AI valued above €21B, ClickHouse ARR passes $350M

Unleash raised a $35 million Series B for its feature-flag platform. Mistral AI closed a €3 billion Series D at a valuation above €21 billion. ClickHouse acquired RunReveal and its ARR passed $350 million. Moonshot AI is considering a Hong Kong IPO of up to $5 billion.

• Unleash raised $35M Series B for its enterprise feature-flag platform
• Mistral AI closed a €3B Series D at a valuation above €21B
• ClickHouse ARR passed $350M amid demand for AI workloads
• Moonshot AI is considering a Hong Kong IPO of up to $5B