Run Jev-Style Decision Models Locally with Ollama (Free)

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Издатель Oct 1, 2026

Jev got everyone talking about decision models, but its API needs credits and a credit card. Now you can run Jev-style decision models free on your own laptop with Ollama.

Ollama now supports "System One" decision models: Tev1 from Together AI and Nimble from Bespoke Labs. You give them a state and a set of choices, and they return a pick with a probability and confidence score. They don't generate text, which is why output tokens cost nothing. Running locally, the cost is zero and no API key is needed.

What you'll learn:
- How a decision model differs from ChatGPT-style LLMs (MCQ vs essay)
- Install Ollama and pull Tev1 (811 MB) or Nimble (9 GB)
- Start the local server with ollama serve
- Call the model from a Postman collection (jev-ollama)
- Run the code demo with npm run demo local
- Use confidence scores to triage flaky test failures and decide whether to retry

Chapters:
0:00 Jev-Style Decision Models, Now Free on Ollama
0:51 MCQ vs Essay: How a Decision Model Works
1:33 Jev Playground: State + Choice, Score, Yes/No
2:38 Ollama Explained: Docker for AI Models
3:43 Install Ollama, Pull Tev1 & Nimble, ollama serve
5:21 Postman Collection: First Local Decision
6:57 Run the Code: npm run demo local
7:35 Zero Output Cost + Flaky Test Triage
8:42 Where to Get the Code & Other Jev Videos

Resources mentioned:
⬇️ Download Ollama: https://ollama.com/download