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Decision model benchmark: Jev, Kev, Liquid d1, and more

calendar_today October 7, 2026 person Jim Bennett domain arize-ai

On 15 September, TypeSafe released Jev, and within a few weeks about 10 companies had shipped something that works the same way. OpenAI, Liquid, Cloudflare, AWS and PostHog all launched one, and an open clone called Kev showed up on Hugging Face in between. If you build agents or run evals, you now have a…

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