TypeSafe AI has raised $870 million at a $7.5 billion valuation for Jev, a non-text AI model that has gone viral since its Sept. 15 release. The round was led by Andreessen Horowitz, with participation from Sequoia and existing investor DCVC. The company claims that a third of Fortune 500 companies are already using the model, an unusually fast enterprise adoption rate.

Jev is based on transformer architecture but is not a large language model. Instead of generating text, it outputs probabilities that TypeSafe calls ‘calibrated decisions.’ The company says this makes it significantly faster and far less token-hungry than LLMs, and it positions Jev for automating tasks rather than producing text or code.

TypeSafe was co-founded in 2024 by Diogo Almeida, a former OpenAI researcher; Sasha Sheng, a former Meta research engineer; and Erik Gafni, an engineer and entrepreneur. Almeida explained the premise: “We have been super good at human language for four years, but it’s not useful for automation because computers speak a different language.”