Arcee AI built Trinity for about $20m, and investors now value it at $1bn+

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“Organizations should not have to choose between the capabilities of a frontier model and the ability to control the technology at the center of their work,” said Mark McQuade, co-founder and chief executive of Arcee AI.

The San Francisco company builds open-weight AI models. It has raised a Series B round that values it at more than $1bn, according to its announcement on 16 September. Vista Equity Partners, Cambium Capital and Emergence Capital led the round. AI10 Ventures, Hitachi, IAG, Microsoft’s M12, P7 and Wipro also took part.

Arcee did not disclose the amount. A source told Fortune, which first reported the round, that it was at least $150m. Fortune put the valuation at $1bn before the new money.

A frontier model for about $20m

Arcee released the Trinity family of models over the past year. The largest, Trinity Large, has 400 billion parameters, with 13 billion active for...

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