Old Zhang's AI Learning

May 30, 2026 · Artificial Intelligence

vLLM Introduces Native RL API for Seamless Weight Synchronization

vLLM’s new native RL API introduces a four‑stage weight‑transfer protocol, pluggable backends, and a keep‑mode pause/resume mechanism that eliminates deadlocks in DPEP deployments, with large‑scale validations on SkyRL and Prime‑RL demonstrating reliability and performance gains.