What is a decision model? Jev by @typesafeai answers yes/no and...
OpenRouter@OpenRouter
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Sep 19, 2026
~1 min read
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What is a decision model?
Jev by @typesafeai answers yes/no and multiple-choice questions, with a confidence score. Much of software development are a sequence of decisions, and Jev is 10x cheaper and faster than an LLM.
Let’s understand this through practical examples:
Jev by @typesafeai answers yes/no and multiple-choice questions, with a confidence score. Much of software development are a sequence of decisions, and Jev is 10x cheaper and faster than an LLM.
Let’s understand this through practical examples:
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1/ Better support triage. Ask it to tag the tickets: cancelling? Refund? Angry? Bug report? Escalate? Jev tagged the messages in 2.3 seconds for a tenth of a cent. A chat LLM on the same batch took 20 seconds.
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2/ Faster agent tool calls. Agents need to make tool calls, Jev could pick the right tools to call at a fraction of the cost and time.
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3/ Quickly filter an X feed. Every reply on X is a multiple-choice question: genuine question, hot take, promotion, rage bait, or troll? Filter as you scroll, in real-time, for pennies.
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4/ Real-time actions in meeting notes. Per conversation - was it addressed to the assistant? Did the person finish their thought? Was there a specific request? Was there an action to take? Done real-time.
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5/ Break problems into small yes/no and multiple-choice decisions, and a decision model answers them fast enough and cheap enough to run on every message, every tool call, every sentence.
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6/ All mini apps are in OpenRouter Labs, with the code included: openrouter.ai/labs/jev
Model page: openrouter.ai/~typesafe/jev-…
Model page: openrouter.ai/~typesafe/jev-…