AI Lab Flapping Airplanes Reaches $6B Valuation After $1B Funding

• Flapping Airplanes, founded in late 2025, is an AI research lab based in San Francisco.
• The company raised $1 billion in funding at a $6 billion valuation, led by Index Ventures and Lux Capital.
• This valuation is four times its value from January, as reported by Bloomberg.
• Flapping Airplanes is working on training AI with less data and compute but has no product yet.
• Other investors in the round included Sequoia Capital and Alphabet Inc.’s CapitalG.