Vela 2.0: Open Foundation Routing Models

October 6, 2026 · 24 min read

Ádám Kovács

Co-founder @ KR Labs · LettuceDetect

Xunzhuo Liu

Intelligent Routing @vLLM | Open Source & AI @AMD

Still one model. Still one request. Now with spans. Sound on.

Open Foundation Routing Models. Bringing span-level decisions to System One.

Vela 2.0 is a family of open models for routing, safety checks and span-level decisions. Define your options, labels and rubrics at request time; get structured answers with probabilities and character-offset spans through one SystemOne-compatible interface.

Explore the four models → · Read about Decision →

Introducing Vela 1.0

September 18, 2026 · 10 min read

vLLM Semantic Router Team

Every request finds its way. Meet Vela in 87 seconds. Sound on.

Today, we're excited to release Vela 1.0: 14 open models built for a world of many models.

Vela helps systems understand requests, protect sensitive information, find better context, and connect text, images, and audio. It is the model family we're building for vLLM Semantic Router, and a new foundation for everyone turning a collection of models into a capable system.

Explore all 14 models → · Try in Vela Studio →