May 30, 2026 · Artificial Intelligence

vLLM Semantic Router Deep Dive: Engineering Multimodal Routing and Bug Fixes

The article details the vLLM Semantic Router's Signal-Decision architecture, explores multimodal routing challenges, uncovers an 82% visual signal reversal issue, and walks through three layered bug fixes that restore cosine similarity above 0.999 across extensive tests.

Bug FixEmbeddingMultimodal

0 likes · 13 min read

vLLM Semantic Router Deep Dive: Engineering Multimodal Routing and Bug Fixes

Old Zhang's AI Learning

Mar 27, 2026 · Artificial Intelligence

vLLM’s Four Major 2026 Updates: Semantic Router Athena, Nemotron 3 Super, P‑EAGLE, and Model Runner V2

The March 2026 vLLM release bundle introduces four substantial upgrades—Semantic Router v0.2 Athena, NVIDIA Nemotron 3 Super, the parallel speculative decoding P‑EAGLE, and a completely re‑architected Model Runner V2—each backed by concrete benchmarks, architectural diagrams, and code examples that demonstrate how the engine evolves from a pure inference engine to a full‑stack AI serving platform.

GPU AccelerationModel Runner V2Nemotron-3-Super

0 likes · 17 min read

vLLM’s Four Major 2026 Updates: Semantic Router Athena, Nemotron 3 Super, P‑EAGLE, and Model Runner V2

vLLM Semantic Router Deep Dive: Engineering Multimodal Routing and Bug Fixes

vLLM’s Four Major 2026 Updates: Semantic Router Athena, Nemotron 3 Super, P‑EAGLE, and Model Runner V2

vLLM’s Four Major 2026 Updates: Semantic Router Athena, Nemotron 3 Super, P‑EAGLE, and Model Runner V2