We tested Jev against LLM judges on accuracy

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Tested Jev against LLM judges on accuracy, repeatability, latency, and cost for agent evaluation.

The original post

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.

Engagement when collected

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Numbers are a snapshot taken from X when the case was added to the library (schema v1, collected 2026-09-19); they will not match today.

Where this case fits

Filed under agents & workflows. In the pattern Jev is built for, the model answers a bounded question per step — and ordinary code acts on the answer, because the answer is already a value rather than a paragraph. Other posts in the same family are on the agents & workflows page.

Related Jev cases

Keep browsing: all 1173 Jev cases · more from @LangChain · builders · what Jev is

Last updated: 2026-09-22 · sources & corrections · every card links to its author's original post