TypeSafe raised $870 million in a Series A at a $7.5 billion valuation, weeks after Jev's September 15 launch, and the two accounts of who already uses it don't match. TypeSafe says a third of the Fortune 500 are using Jev. Andreessen Horowitz, which led the round, says 25% of Fortune 500 enterprises have integrated it.
Sequoia Capital and existing investor DCVC joined, and Martin Casado is joining the board. Neither account names a customer, so you can't tell which figure is closer, or whether the two counts even cover the same companies. The announcement doesn't set a consumer price. Jev is already available to developers and enterprises.
What Jev returns
Jev is built on a transformer, and what comes back is a probability, which TypeSafe calls a calibrated decision. Your code can store that value, compare it, and branch on it. A workflow that has to accept, reject, or send something on for review can threshold the number. That's the automation pitch. The system gets a decision it can act on.
Andreessen Horowitz says developers spent the first week trying Jev on generative interfaces, games, and data analysis. TypeSafe says customers have already saved millions of dollars in production. The model you can call today is the public one. The savings figure comes from the company, with no customer attached to it.
Co-founder Diogo Almeida, who previously worked at OpenAI, told TechCrunch: "We have been super good at human language for four years, but it's not useful for automation because computers speak a different language." He started TypeSafe in 2024 with Sasha Sheng, a former Meta research engineer, and Erik Gafni, an engineer and entrepreneur. Jev is the product you can use now. The raise doesn't announce a new tier, a waitlist, or a date for the enterprise features.
For developers, TypeSafe says the capital goes to more machine-native models and to the infrastructure around them. TypeSafe uses machine-native for a model that returns a value your program can take directly. For businesses, the money goes to the enterprise features customers have already requested. You can use Jev while you wait on that list. The announcement doesn't say when the extra features arrive.
If you're weighing Jev for production automation, wait for a named customer before you budget as if the round settled the product.
Photo: Christopher Michel / Wikimedia Commons, CC BY 2.0.
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