Last round
$450 million
Series B
Total funding
$580 million
CuspAI uses generative AI models trained to be synthesis aware, meaning the materials they design can actually be manufactured, to speed up discovery of semiconductors, batteries and clean energy materials. The Cambridge based company closed a 450 million dollar Series B in July 2026 led by Kleiner Perkins and NEA, taking total funding past 580 million dollar.