jevals vs Otis
Both are LLMs & Infrastructure and AI Agents tools. jevals is open source; Otis is free.
Grok| jevals | Otis | |
|---|---|---|
| Tagline | Replacing LLM judges with typed Jev decisions | A minimal AI agent that runs local models out of the box |
| Pricing | Open Source | Free |
| Categories | LLMs & Infrastructure, AI Agents | AI Agents, LLMs & Infrastructure |
| Built for | Developers | Developers |
| Platforms | API | — |
| Tech stack | Python | — |
| Alternative to | — | — |
| AI Launch upvotes | ▲ 0 | ▲ 0 |
| Hacker News | Y▲ 47 on HN | Y▲ 19 on HN |
| Launched | 2026-09-25 | 2026-09-24 |
Overview
Who it's for
jevals
Developers who evaluate and guard AI agents in production.Otis
—Problem
jevals
LLM-as-judge evals are slow and costly, so teams can't run them on every trace or inside the agent loop.Otis
—Solution
jevals
Typed decision models that score many checks in one cheap, fast request, including security checks like indirect injection.Otis
—What makes it unique
jevals
The README's quickstart runs eight checks in one request for about $0.00006 in 0.33 seconds.Otis
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