Welcome to The Stack’s weekly round-up of the latest startups, scaleups, and funding news. (Want us to include your milestone in the next wrap-up? Get it to Noah Bovenizer here with the story in 50 words or fewer.)

This week, with a higher and higher percentage of code being written by AI tools, the review process has become a major task for human developers. That issue is what drives AI code review platform CodeRabbit, which raised $143 million at a $1.5 billion valuation for its Series C round.

CEO Harjot Gill spoke to The Stack about that review problem and why using AI to judge AI output is the way forward.

Also this week, there are $1 billion+ valuations for Thrive Holdings, River AI, and Lovable, alongside major rounds for an AI benchmark company, a context graph startup, and more.

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