The Week’s 10 Biggest Funding Rounds: AI Drives A Varied Lineup Of Large Financings

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This is a weekly feature that runs down the week’s Top 10 announced funding rounds in the U.S. Check out last week’s biggest funding deal roundup here. It was another interesting week for AI-related startup funding, with a number of large rounds and quirky companies. The largest financings went to Tenstorrent, a developer of AI processors and systems, and AI lab Flapping Airplanes. The quirkiest round, meanwhile, was undoubtedly a $200 million financing for Warhound, which wants to breed elite military dogs. A number of big rounds in areas including biotech, space tech and physical AI rounded out the list. 1. Tenstorrent, $1.5B, AI infrastructure: Santa Clara, California-based Tenstorrent, a developer of AI processors and systems, secured $1.5 billion in Series E funding. Trace Capital and Innovation X led the round, which set a $6.2 billion valuation for the 10-year-old company. 2. Flapping Airplanes, $1B, foundational AI: Flapping Airplanes, an AI lab with a focus on developing models that cost less to train and run, closed on $1 billion in Series A funding led by Lux Capital and Index Ventures. The round comes less than 10 months after the year-old San Francisco startup raised a $180 million seed financing. 3. ASI, $325M, AI for critical infrastructure: ASI, a developer of AI technology for securing and operating critical infrastructure in areas such as aviation, transportation and defense, picked up $325 million in Series C financing. Spark Capital led the round, which set a $3 billion valuation for the Boston-based company.