Arcee AI Reaches $1 Billion-Plus Valuation in Series B for Open-Weight AI Models

Arcee AI has raised a Series B round that values the San Francisco open-weight model developer at more than $1 billion, giving the young company new backing for its Trinity model family and scientific AI work. The round was led by Vista Equity Partners, Cambium Capital and Emergence Capital, with AI10 Ventures, Hitachi, IAG, M12, P7 and Wipro also participating, according to Arcee's announcement. Arcee did not disclose the size of the financing; The Next Web reported that Fortune put the round at least $150 million.