SOURCE-LINKED INTELLIGENCE

VerNav: Verifier-First Low-Latency Vision-and-Language Navigation

arXiv · AI, language, vision and robotics · article · Sep 1, 2026 · UTC

Vision-and-Language Navigation (VLN) requires an agent to navigate through unseen 3D environments according to natural-language instructions. Explicit reasoning can improve instruction understanding and semantic grounding, but autoregressive generation at every step accumulates large decision-stage latency over multi-step navigation. We propose VerNav, a verifier-first framework for low-latency LLM-based VLN. The verifier reduces decision-stage latency by replacing per-step autoregressive generation with batched action verification, while an entropy-based adaptive generator is invoked only for

Read original source ↗ Open in workspace

recordType

paper

region

Global