What it is
ai-cli is a terminal tool from Vercel Labs that generates text, images, video, and audio, and evaluates typed questions. It is for developers who want composable AI commands with stdin support and predictable outputs.
How it uses Jev
The `evaluate` command uses Jev as the default evaluation model. Stdin maps to `state`; typed flags build named `questions`. Jev returns probabilities for Boolean, Choice, and Score questions. Output is JSON on stdout; apply thresholds and routing in your code.
Primitives:choicescorenoul
Technique worth stealing
Use one unchanged input for all questions; ask small, focused questions with complete instructions and meaningful criteria.
Try it
npm install -g ai-cli, then: cat ticket.txt | ai evaluate --boolean "refund=Refund requested?"
Evidence
Each line is one question put to Jev about the README. ≥ 0.60 reads as yes, ≤ 0.40 as no; in between Jev is not making a call.
- Jev-centricno0.06
- Shows a System One patternno0.16
- Handles uncertaintyno0.04
- Measuredno0.04
- Runnableyes0.98
- Worth recommendingno0.15
- Model replicano0.06
- Problem scopescore on a 0–2 scale1.03
- About Jevyes0.83
Signals by Jev jev-1.13.0, card written by DeepSeek V4.1 Flash from the README on 20 Sept 2026.