AutoNeural: Co-Designing Vision-Language Models for NPU Inference

Fuente: arXiv
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Main Authors: Chen, Wei, Wu, Liangmin, Hu, Yunhai, Li, Zhiyuan, Cheng, Zhiyuan, Qian, Yicheng, Zhu, Lingyue, Hu, Zhipeng, Liang, Luoyi, Tang, Qiang, Liu, Zhen, Yang, Han
Format: Preprint
Published: 2025
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author Chen, Wei
Wu, Liangmin
Hu, Yunhai
Li, Zhiyuan
Cheng, Zhiyuan
Qian, Yicheng
Zhu, Lingyue
Hu, Zhipeng
Liang, Luoyi
Tang, Qiang
Liu, Zhen
Yang, Han
author_facet Chen, Wei
Wu, Liangmin
Hu, Yunhai
Li, Zhiyuan
Cheng, Zhiyuan
Qian, Yicheng
Zhu, Lingyue
Hu, Zhipeng
Liang, Luoyi
Tang, Qiang
Liu, Zhen
Yang, Han
contents While Neural Processing Units (NPUs) offer high theoretical efficiency for edge AI, state-of-the-art Vision--Language Models (VLMs) tailored for GPUs often falter on these substrates. We attribute this hardware-model mismatch to two primary factors: the quantization brittleness of Vision Transformers (ViTs) and the I/O-bound nature of autoregressive attention mechanisms, which fail to utilize the high arithmetic throughput of NPUs. To bridge this gap, we propose AutoNeural, an NPU-native VLM architecture co-designed for integer-only inference. We replace the standard ViT encoder with a MobileNetV5-style backbone utilizing depthwise separable convolutions, which ensures bounded activation distributions for stable INT4/8/16 quantization. Complementing this, our language backbone integrates State-Space Model (SSM) principles with Transformer layers, employing efficient gated convolutions to achieve linear-time complexity. This hybrid design eliminates the heavy memory I/O overhead of Key-Value caching during generation. Our approach delivers substantial efficiency gains, reducing quantization error of vision encoder by up to 7x and end-to-end latency by 14x compared to conventional baselines. The AutoNeural also delivers 3x decoding speed and 4x longer context window than the baseline. We validate these improvements via a real-world automotive case study on the Qualcomm SA8295P SoC, demonstrating real-time performance for cockpit applications. Our results highlight that rethinking model topology specifically for NPU constraints is a prerequisite for robust multi-modal edge intelligence.
format Preprint
id arxiv_https___arxiv_org_abs_2512_02924
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle AutoNeural: Co-Designing Vision-Language Models for NPU Inference
Chen, Wei
Wu, Liangmin
Hu, Yunhai
Li, Zhiyuan
Cheng, Zhiyuan
Qian, Yicheng
Zhu, Lingyue
Hu, Zhipeng
Liang, Luoyi
Tang, Qiang
Liu, Zhen
Yang, Han
Computation and Language
While Neural Processing Units (NPUs) offer high theoretical efficiency for edge AI, state-of-the-art Vision--Language Models (VLMs) tailored for GPUs often falter on these substrates. We attribute this hardware-model mismatch to two primary factors: the quantization brittleness of Vision Transformers (ViTs) and the I/O-bound nature of autoregressive attention mechanisms, which fail to utilize the high arithmetic throughput of NPUs. To bridge this gap, we propose AutoNeural, an NPU-native VLM architecture co-designed for integer-only inference. We replace the standard ViT encoder with a MobileNetV5-style backbone utilizing depthwise separable convolutions, which ensures bounded activation distributions for stable INT4/8/16 quantization. Complementing this, our language backbone integrates State-Space Model (SSM) principles with Transformer layers, employing efficient gated convolutions to achieve linear-time complexity. This hybrid design eliminates the heavy memory I/O overhead of Key-Value caching during generation. Our approach delivers substantial efficiency gains, reducing quantization error of vision encoder by up to 7x and end-to-end latency by 14x compared to conventional baselines. The AutoNeural also delivers 3x decoding speed and 4x longer context window than the baseline. We validate these improvements via a real-world automotive case study on the Qualcomm SA8295P SoC, demonstrating real-time performance for cockpit applications. Our results highlight that rethinking model topology specifically for NPU constraints is a prerequisite for robust multi-modal edge intelligence.
title AutoNeural: Co-Designing Vision-Language Models for NPU Inference
topic Computation and Language
url https://arxiv.org/abs/2512.02924