@LangChain says they tested Jev against LLM judges on accuracy, repeatability, latency, and cost, to see whether System One models could be a new approach to agent evaluation. They link a write-up.

LangChain (@LangChain) published this on 2026-09-19. @LangChain says they tested Jev against LLM judges on accuracy, repeatability, latency, and cost, to see whether System One models could be a new approach to agent evaluation. They link a write-up. We tested Jev against LLM judges on accuracy, repeatability, latency, and cost to see whether System One models could offer a new approach to agent evaluation. How Jev or TypeSafe is used, in the post's own words: “We tested Jev against LLM judges on accuracy, repeatability, latency, and cost to see whether System One models could offer a new approach to agent evaluation.” The post does not name a separate audience. It is for people reading what @LangChain shows here (it links to x.com; it includes media).