AILangChainabout 1 hour ago
Jev Model Outperforms LLM Judges in Agent Evals
8 min read
TypeSafe AI's Jev, a non-generative System One model, was tested by LangChain against GPT-5.6 Luna, Terra, and Claude Sonnet 4.6 on five weather agent runs. Jev matched human labels on all 500 binary decisions, had 92 to 913 times lower score variance, and cost $0.00035 per call versus Claude's $28.17 total.
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