Amid the surging AI wave, office scenarios have become a main battlefield for leading players. After organizational restructuring, ByteDance, Tencent and Alibaba concentrated resources. On September 15, ByteDance CEO Liang Rubo appeared at the Feishu Future Infinite Conference & Doubao Work Kickoff Conference, announcing integration of Doubao, Feishu and Volcano Engine capabilities, increased investment in the enterprise-level AI office market, and new products such as Doubao Work Partner. Tencent's WorkBuddy launched its open platform on September 2 with more than 100 ecological partners in the first batch, co-branded with *Peacekeeper Elite* on September 8, and launched the WorkBuddy Travel Tool Creation Contest on September 16. Alibaba's Qwen Office reported on September 4 that since launch it completed 120 version updates, averaging 4 iterations per day, with registered users exceeding 30 million, more than half enterprise users. Baidu announced it will build Baidu Buddy into a fully open ecological platform, opening connectors, skills, suites and hardware, promising never to draw commissions from partners. Kingsoft Office received the agent identity code node on September 14, becoming China's first AI office manufacturer to hold one. Overseas, Microsoft Copilot holds a first-mover advantage; Google's Workspace is accelerating; OpenAI launched ChatGPT Work in July 2026; Anthropic merged Claude Cowork and Claude Chat into Claude on September 17. According to