BYD Denza Z9S Receives First OTA Update with AI Agent 'Didixia'
BYD's Denza Z9S is receiving its first OTA update, introducing the 'Didixia' AI super agent, celebrity voice broadcasts, and new infotainment features. The update brings advanced voice-controlled vehicle operations, AI daily summaries, and a microphone-free karaoke function. This update highlights the growing trend of integrating advanced generative AI and personalized software experiences into smart electric vehicles. It demonstrates how automakers are continuously enhancing user interaction and cabin entertainment through over-the-air software updates. The newly integrated 'Didixia' AI agent supports multi-step complex command execution and smartphone ecosystem integration. Additional features include magnetic doll themed interactions and voice broadcasts from brand spokesperson Wang Leehom.
## BACKGROUND
OTA (Over-the-Air) technology allows automotive manufacturers to remotely update vehicle software, firmware, and application data using mobile communication networks without requiring a physical visit to a service center. The Denza Z9S is a luxury smart sedan launched by BYD in September 2026, featuring an 1100-kilometer pure electric range and the 'Yi Sanfang' technology platform.