TypeSafe AI, the developer of Jev, a new type of AI model that quickly gained popularity after launching just a few weeks ago, has raised $870 million at a valuation of $7.5 billion. The round was led by Andreessen Horowitz, with participation from Sequoia and existing investor DCVC. The massive fundraising is no surprise given that Jev went viral almost instantly after its release on September 15. The startup claims that a third of Fortune 500 companies are already using the model, a remarkably rapid adoption by companies. Jev is based on a transformative architecture, but it is not a large language model (LLM). It doesn’t generate text, but rather probabilities, or what the company calls “calibrated decisions.” What has users and large corporations so excited about Jev is TypeSafe’s claim that it runs significantly faster and uses far fewer tokens than LLM. The company positions its approach as especially suited to automating tasks rather than generating text or code. “We’ve been very good at human language for four years, but it’s not useful for automation because computers speak a different language,” TypeSafe co-founder Diogo Almeida told TechCrunch last month. Along with Almeida, who was previously a researcher at OpenAI, TypeSafe was co-founded in 2024 by former Meta research engineer Sasha Sheng and Erik Gafni, an engineer and entrepreneur.
