字节推出GR-3模型，泛化性显著提升：字节跳动发布通用机器人模型 GR-3 点评

Investment Rating - The report assigns an "Overweight" rating for the industry [6]. Core Insights - ByteDance has launched the GR-3 model, which shows significant improvement in complex task execution and generalization capabilities, suggesting a focus on related industry chain targets [2][5]. - The GR-3 model, based on the VLA architecture, demonstrates enhanced performance in new environments and object handling compared to its predecessor GR-2, with a notable increase in task execution success rates [5]. - The report highlights the potential for ByteDance to achieve productization in both software and hardware, particularly in consumer-oriented scenarios, as the technology and industry chain mature [5]. Summary by Sections Investment Recommendations - The report recommends focusing on industry chain-related stocks, including: - Motors: Mingzhi Electric - Encoders: Yapu Co., Fengcai Technology - Rotary Joints: Zhongchen Technology - Linear Joints: Hengli Hydraulic, Zhejiang Rongtai, Demais [5]. Model Performance - The GR-3 model has a superior task execution success rate compared to the industry-leading model π0, with a 17.8% higher success rate in new object operations [5]. - The GR-3 requires only 10 human trajectory data points to increase the success rate of new object operations from 60% to over 80% [5]. Hardware Development - Alongside the GR-3 model, ByteDance has introduced the ByteMini, a dual-arm mobile robot designed to leverage the capabilities of the GR-3 model, featuring 22 degrees of freedom and a multi-camera system for enhanced operational flexibility [5].