TypeSafe AI announced an $870 million Series A at a $7.5 billion valuation, a large early-stage bet on an AI system built to work inside software rather than mainly through a chat window.
Andreessen Horowitz led the round, while Sequoia Capital and existing investor DCVC participated, according to the company. Martin Casado, an Andreessen Horowitz general partner, is joining TypeSafe AI's board.
TypeSafe AI's main product is Jev. Andreessen Horowitz describes it as a model that returns typed values directly to code, an approach intended to make its output easier for software to consume and verify. The distinction matters because a program generally needs structured data, not a conversational answer, before it can act on a model's response.
The company says about a third of the Fortune 500 use Jev, though it has not named those customers. Bloomberg reported that Jev had launched only weeks before the financing and that TypeSafe AI said it reached 1 million users within days. Those adoption figures are company claims rather than independently disclosed customer data.
TypeSafe AI says it plans to use the funding to build more “machine-native” models, expand the infrastructure behind them and add enterprise features. The round gives the company substantial resources to pursue that plan, but its most eye-catching usage numbers remain self-reported.
