Flapping Airplanes raised a $1B Series A at a $6B valuation before launching a commercial product, up from a $1.5B seed nine months ago. Bloomberg reports Index and Lux co-led, with Sequoia, GV, Klein

What happened: Flapping Airplanes, an AI startup founded around late 2025 in San Francisco, raised a $1 billion Series A led by Index Ventures and Lux Capital, with Sequoia, GV, Kleiner Perkins, Valor, Atreides and Nvidia participating. Key numbers: $1 billion Series A; $6 billion valuation (about 42.6 billion RMB), up from $1.5 Why it matters: The company has no commercial product yet and its GPU software claims come mainly from its founders, with no independent benchmarks, customer cases or revenue disclosed. Nvidia's participation signals chipmaker interest in its GPU efficiency work.

Flapping Airplanes, an AI startup founded around late 2025 in San Francisco, raised a $1 billion Series A led by Index Ventures and Lux Capital, with Sequoia, GV, Kleiner Perkins, Valor, Atreides and Nvidia participating.

The company has no commercial product yet and its GPU software claims come mainly from its founders, with no independent benchmarks, customer cases or revenue disclosed. Nvidia's participation signals chipmaker interest in its GPU efficiency work.