Physix Frontier · News Briefing Card (IT Home · Oct 11, 2026)

ByteDance, Tencent Race to Build Personal AI Agents, Chasing Meta Muse

KEY FACTS

ByteDance pushed hard on personal agent development before China's National Day holiday, under the project codename Spell.
The Spell project is led by the Doubao mobile assistant team and is planned to be integrated with the Doubao product.
Tencent launched its personal agent LightVela in late September, accessible through WeChat.
Meta released its personal agent Muse on September 8, capable of sending emails and booking travel on the user's behalf.
Muse can access data from email, calendar, payment and other apps, with user authorization and revocation.

KEY DATA

September 8Meta Muse launch date

late SeptemberTencent LightVela launch date

April this yearByteDance Spell project start date

PHYSIX OBSERVATION

Meta Muse pushed agents from answering questions to acting on the user's behalf, and Chinese tech giants immediately picked up the pace. ByteDance has Doubao as a traffic gateway, Tencent has WeChat's social graph, and neither lacks scenarios; what they lack is cross-app authorization and trust mechanisms. Whoever solves permissions and security first can turn the agent into a daily entry point, otherwise it is just another chat shell.

Source: IT Home report