---
title: "BYD launches Xuanji A3, calls it China’s first 4nm smart driving chip"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/288036203.md"
description: "BYD has launched the Xuanji A3, China's first 4nm autonomous driving chip, which supports L3 and L4 capabilities. The chip is now in mass production and features a three-chip configuration with over 2,100 TOPS of computing power. BYD's chip R&D team consists of over 7,000 members, with investments exceeding 100 billion yuan ($13.9 billion)."
datetime: "2026-05-29T08:37:29.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/288036203.md)
  - [en](https://longbridge.com/en/news/288036203.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/288036203.md)
---

# BYD launches Xuanji A3, calls it China’s first 4nm smart driving chip

At BYD’s launch event on Thursday, Wang Chuanfu, chairman and founder of BYD, unveiled BYD’s self-developed Xuanji A3, China’s first 4nm autonomous driving chip, which supports L3 and L4 autonomous driving capabilities. The chip has entered mass production and supports L3 and L4 autonomous driving. A three-chip configuration delivers a combined computing power of over 2,100 TOPS. Currently, BYD has a chip R&D team of more than 7,000 people, with related investments exceeding 100 billion yuan ($13.9 billion), and operates four major chip research and development centers. \[IThome, in Chinese\]

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