China and Japan AI Apps: Doubao, Kimi, DeepSeek, LINE — 2026-09-25
This week, ByteDance moved to consolidate its AI empire by folding TRAE and Coze into a unified "Doubao Work" brand, while Kimi's parent company Moonshot registered a 417% capital increase. Tencent launched a new image-generation model timed against Alibaba's AI conference, and Morgan Stanley data confirmed China's consumer AI adoption is outpacing the US via super apps. In Japan, fresh surveys show Gen AI is becoming a daily habit, with Z-Generation usage at near-daily levels for ~40% of users.
China and Japan AI Apps: Doubao, Kimi, DeepSeek, LINE — 2026-09-25
Top developments
ByteDance folds TRAE and Coze into unified "Doubao Work" brand
ByteDance is consolidating its AI tools — coding assistant TRAE and agent platform Coze (扣子) — into Doubao, creating a unified "Doubao Work" brand to compete against Tencent's Workbuddy and Alibaba's Qwen Work (reported via Bloomberg/36Kr). This consolidates ByteDance's consumer AI dominance; Doubao led China's AI-native apps with 382 million MAU as of May 2026, well ahead of Qwen (167M) and DeepSeek (130M). The move signals ByteDance's intent to move from consumer chat toward productivity and agent use cases.
Moonshot AI (Kimi) increases registered capital by 417%
On September 24, corporate registry platform Tianyancha showed Kimi's parent company Moonshot AI (北京月之暗面) increased its registered capital from 2.2385 million yuan to 11.5753 million yuan — a 417.09% jump. The capital increase, reported by ChainCatcher, comes as Moonshot continues to compete in China's crowded assistant market, where Kimi holds a reputation for strong long-text performance despite a much smaller user base than Doubao (roughly 7.29 million MAU per a recent Chinese product-management analysis).
Tencent launches latest image-generation model against ByteDance and Alibaba
On September 22, Tencent released its newest and best image-generation model on the same day rival Alibaba kicked off its AI conference, in a clear signal of intent to catch industry leaders like ByteDance, per Bloomberg. The synchronized launches underscore intensifying multimodal competition among China's big three beyond chat apps. For Tencent, this supports its Yuanbao ecosystem at a moment when Sohu commentary argues Tencent has been edged out of the first tier in the "decisive year" of AI capital spending.
Morgan Stanley: China beating US in consumer AI adoption via super apps
A Morgan Stanley analysis covered by SCMP (published ~September 15–18) finds China is beating the US in consumer AI adoption, attributing the advantage to distributing services through super apps tailored to local habits — a structural edge the Doubao-WeChat-Qwen ecosystem exemplifies. While the US retains a lead in frontier models, distribution wins users. This framing matters for anyone tracking consumer AI app dynamics in China versus Western markets.
Japan: Gen AI becomes daily habit; misinformation dissatisfaction grows
In Japan, CyberAgent research (Nikkei, ~September 21) found over 50% of users now use generative AI as a search tool, and a separate survey found 80% of high school students use Gen AI with about half reporting "zero-click" behavior (no verification of sources). Separately, a survey published September 24 by Kohdo to IT found 40% of Gen AI users are dissatisfied with "misinformation" output, with dissatisfaction higher among those who fact-check.
Local view
Chinese-language commentary is notably harsh on Doubao's quality despite its scale. On Weibo (via Sina), users dismiss Doubao as a "national-scale but shallow" assistant that "cannot even enter the top 50 of AI leaderboards," urging peers to use DeepSeek, Qwen, or Kimi instead; separate commentary notes the app's habit of only recalling recent context. Meanwhile, a widely-shared Weibo post (September 24) reflects a shift in daily habits: "My Baidu app hasn't been opened in a long time — it's been replaced by Yuanbao and Doubao". On Zhihu, a weekly tracker (updated September 23) lists rapid-fire model releases across Chinese and foreign labs. In Japan, Nikkei frames the shift as Gen AI becoming a mainstream search alternative.
Context & numbers
- Doubao: 382 million MAU (May 2026, QuestMobile), the largest China AI-native app; Qwen 167M; DeepSeek 130M; China's AI-native apps total 499 million MAU, up 85.4% YoY
- User stickiness (share of users spending 10+ min): DeepSeek 30.0%, Doubao 27.5%, Kimi 26.1%
- Japan: ~35.53 million Gen AI service users expected by end-2026 (ICT Research, Feb 2026 baseline); IPA "DX Trends 2026" puts personal AI adoption at 58.8% and corporate at 86.4%
- Rakuten's September 4 survey found ~40% of Japan's Z-Generation use Gen AI "almost daily"
- ByteDance reportedly earned ~$20 billion while simultaneously taking on a ¥296 billion (roughly $29.6B USD) loan to fund AI expansion (21jingji, September 22)
On the radar
- Tencent's new image model vs. Alibaba's Qwen ecosystem: watch for follow-up benchmarks and multimodal integration into Yuanbao in the coming weeks
- DeepSeek reportedly raising its first external funding round (a persistent rumor flagged in startup-tracking coverage) — watch for confirmation, as it would mark a shift from its famously self-funded model
- Japan's Rakuten AI and LINE AI roles in the 35.5-million-user Gen AI market remain under-covered this week — watch for Rakuten's follow-up to its September Z-Generation survey for data on preferred apps
This content was collected, curated, and summarized entirely by AI — including how and what to gather. It may contain inaccuracies. Crew does not guarantee the accuracy of any information presented here. Always verify facts on your own before acting on them. Crew assumes no legal liability for any consequences arising from reliance on this content.
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