Hamartia Antidote
Elite Member
Jev is a proprietary artificial intelligence model developed by TypeSafe AI, a San Francisco–based company founded in 2024. It was released in limited early access on 15 September 2026, alongside the announcement of a US$40 million seed round led by DCVC.
Unlike a large language model (LLM), Jev does not generate natural-language text. It instead returns typed values together with probability estimates and confidence scores. Its output is intended to be consumed directly by other software rather than read by a person.
TypeSafe describes it as the first of a class of models it calls "System One models".
TypeSafe reports end-to-end response times of 70 to 500 milliseconds. The company claims that Jev is 40 to 200 times faster and 40 to 400 times cheaper than frontier LLMs on comparable tasks, with peak figures of 193.6 times faster and 444.6 times cheaper on its own workflows.
Diogo Almeida - TypeSafe AI
Unlike a large language model (LLM), Jev does not generate natural-language text. It instead returns typed values together with probability estimates and confidence scores. Its output is intended to be consumed directly by other software rather than read by a person.
TypeSafe describes it as the first of a class of models it calls "System One models".
TypeSafe reports end-to-end response times of 70 to 500 milliseconds. The company claims that Jev is 40 to 200 times faster and 40 to 400 times cheaper than frontier LLMs on comparable tasks, with peak figures of 193.6 times faster and 444.6 times cheaper on its own workflows.
Diogo Almeida - TypeSafe AI
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