From short video to long-form: Douyin is also handing news to AI

从短视频到长文：当抖音把资讯也交给AI

Douyin launched long-form posts in late 2025, raising the cap from 4,000 to 8,000 Chinese characters, and added “AI-selected news” summaries in its Hot topics tab. Long-form publishing is web-only for now, and the post says AI news will enter the main feed, but it does not disclose ranking weight, licensing scope, or fact-checking rules. The real issue is distribution and accountability: AI summaries and original articles will compete in the same traffic pool.

Why it matters: This clears HKR-H/K/R: Douyin putting AI summaries into its hot-news surface is a strong hook, and the piece includes concrete mechanics like the 8,000-word cap, web-only publishing, and follow-up queries. The real industry angle is distribution, copyright, and fact-checking, but