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Why AI model Jev that judges and decides instead of chatting is drawing attention

TypeSafe AI, founded by former OpenAI staff, has released Jev, an AI model it calls a System 1 model. Unlike traditional large language models, Jev does not generate text and instead makes decisions in workflows. Daniel Shea and Seán Roche of LangChain published an analysis focusing on agent evaluation. In tests, Jev matched human scores in 500 of 500 judgments and showed the smallest score variance, while also running faster and cheaper than other models.