What is 知乎直答?
Zhihu Zhida (zhida.ai) is an AI-powered answer engine built by Zhihu, China’s leading knowledge-sharing platform. Unlike generic chatbots, Zhida taps into Zhihu’s vast library of high-quality, community-vetted content—plus trusted external sources—to deliver accurate, well-sourced answers you can rely on. It’s designed for curious minds who want more than just quick replies: they want trustworthy insights backed by real expertise.
At its core, Zhida uses a multi-agent AI system that breaks down complex questions from different angles, ensuring comprehensive and nuanced responses. Every answer includes clear source attribution, so you always know where the information comes from—respecting creators’ rights while keeping content transparent and credible. Whether you're researching, learning, or just exploring ideas, Zhida brings expert-level knowledge within reach.
What are the features of 知乎直答?
- Community-Powered Knowledge Base: Leverages Zhihu’s decade-long archive of expert answers and discussions as its primary source.
- Multi-Agent AI Architecture: Uses multiple specialized AI agents to analyze questions from different perspectives for richer, more accurate responses.
- Source Attribution & Traceability: Every generated answer shows where the information came from, ensuring credibility and copyright compliance.
- File Upload Support: Accepts up to 100 files (PDF, DOCX, PPT, images, EPUB, etc.) with 100 MB max per file for personalized Q&A based on your documents.
- @Mention Functionality: Lets you directly reference specific Zhihu creators or knowledge bases using “@” for targeted, expert-aligned answers.
- Knowledge Hub Integration: Connects users to curated topic collections in the “Knowledge Plaza” for deeper exploration.
What are the use cases of 知乎直答?
- Students researching a complex topic and needing reliable, cited explanations beyond textbook summaries.
- Professionals analyzing reports or data files by uploading them and asking Zhida to extract key insights.
- Writers or creators looking to reference expert opinions from Zhihu’s top contributors on niche subjects.
- Lifelong learners exploring interdisciplinary questions that require nuanced, multi-source answers.
- Users verifying claims or fact-checking by tracing AI responses back to original Zhihu answers or trusted references.
- Teams collaborating on knowledge-heavy projects by sharing document-based queries and sourced responses.
How to use 知乎直答?
- Go to https://zhida.zhihu.com/ and log in with your Zhihu account (or sign up).
- Type your question clearly in the search bar—be specific for better results.
- Use @username or @knowledge_base to direct your query to a particular expert or topic collection.
- Drag and drop supported files (like PDFs or Word docs) to ask questions about your own content.
- Review answers and click on source links to explore original Zhihu posts or references.
- Save useful answers to your Collections or check your History for easy follow-up.









