Home / Task guides / Summarize long articles and PDFs
Top pick: Kimi. It is directly accessible in mainland China, known for long-text reading, and lets you upload an entire document and ask questions. For everyday file summaries, consider Doubao; to search WeChat Official Account articles, consider Tencent Yuanbao.
Updated 2026-10-27
Moonshot AI's chat assistant; upload long documents and ask questions about their content
Long-text reading is its main strength.
PricingFree plan covers everyday chat; agent and coding quotas require membership Third-party source (opens in a new tab)
Ask questions about a PDF and use the citations in answers to check the original text.
PricingFree plan available; the official site states 2 documents can be analyzed per day Official pricing (opens in a new tab)
Meets everyday needs for reading and summarizing files.
PricingChat, Q&A and writing are free; professional features such as slides and data analysis have paid tiers, Standard CNY 68 per month Third-party source (opens in a new tab)
Besides reading files, it can search WeChat Official Account articles.
PricingFree
Answers questions about imported sources, with source citations.
| Kimi | ChatPDF | Doubao | Tencent Yuanbao | Gemini Notebook | |
|---|---|---|---|---|---|
| China access | Accessible in China | — | Accessible in China | Accessible in China | — |
| Pricing | Free plan covers everyday chat; agent and coding quotas require membership | Free plan available; the official site states 2 documents can be analyzed per day | Chat, Q&A and writing are free; professional features such as slides and data analysis have paid tiers, Standard CNY 68 per month | Free | — |
| Chinese interface | Supports Chinese | — | Supports Chinese | Supports Chinese | — |