Tesla China rolls out Doubao-powered voice assistant to four vehicle lines

Tesla China has begun rolling out version 2026.14.13 of its in-car software, formally integrating ByteDance’s Doubao large language model into the Model 3, Model Y, Model S and Model X. The update is being delivered in batches to newly delivered vehicles and some existing cars. Doubao is integrated as a standalone in-car app and provides voice-based interaction.