vLLM Semantic Router v0.2 Athena: ClawOS, Model Refresh, and the System Brain

Athena is the first major hardening step after Iris. It refreshes the model stack, extends routing into safety and semantic control, and starts shaping the system brain needed to make Semantic Router easier to govern, operate, and scale in real deployments.

Synced from official vLLM Blog: vLLM Semantic Router v0.2 Athena: ClawOS, Model Refresh, and the System Brain