[ Learn ]
Learn Jev
Start with the basics, then go as deep as you need: pricing, how Jev compares with other models, and how to write questions it answers well.
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- [ Basics ]
What is Jev?
TypeSafe AI's decision model: how it works, what it costs, what it can't do and who built it.
- [ Guide ]
How to use Jev
Your first API call, step by step: the request, the response, confidence and the Python SDK.
- [ Compare ]
Jev vs ChatGPT and Claude
What each does, and what published tests say about cost, speed and accuracy.
- [ Compare ]
Jev vs OpenAI Decisions API
Same job as Jev, different price and speed. What tests found.
- [ Compare ]
Jev vs open decision models
Free to run yourself. Are they as accurate as Jev?
- [ Pricing ]
Jev pricing
Output free. Typical cost per 1,000 items, real published runs and an independent comparison.
- [ Guide ]
Question design guide
When to use Choice, Score or Noul, how to write criteria that don't overlap, and how to keep costs down.