Stage 3 · Core
Decision Models
When a typed decision beats generated text, and how to route between a decision model and an LLM.
You'll be able to: Know when to use a decision model, an LLM, or both.
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1
Jev: Decisions, Not Text
When the answer set is known in advance, a decision model like Jev returns a typed, confident pick your code can branch on directly, faster and cheaper than an LLM, which leaves the LLM free for real reasoning.
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2
Jev vs LLM: Decide or Generate
If you can list every valid answer in advance, make it a typed decision from a decision model, and save the LLM for work that needs open-ended reasoning or writing.
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3
Jev vs Laya
Jev and Laya both return typed decisions instead of text; pick Laya when labels are few, latency is tight and data must stay home, pick Jev when label sets are large and you want zero ops, and keep an LLM for open-ended work.
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