Deep Search

Deep Search is a web retrieval feature offered by DeepSeek Chat. When enabled, the model synthesizes answers using publicly available information and provides source links, making it ideal for research, fact-checking, and learning queries. Beyond search-based Q&A, the product also supports reasoning, writing assistance, and code generation—all within a single conversation to streamline information gathering and content organization. Generated content is for reference only; always verify critical details manually. Basic chat and search features are free for everyday inquiries and initial research. Developers can integrate the model's capabilities into their own applications via the Open Platform API. For complex questions, the system performs step-by-step reasoning and displays its thought process to facilitate verification of the logic chain. Retrieved sources can be opened individually to compare with original documents, making it well-suited for scenarios requiring rigorous accuracy.