DeepSeek

What is DeepSeek?

DeepSeek is an AI chatbot built around strong reasoning, coding, and math ability. Through the free web app and mobile apps you can ask questions, draft text, debug code, or work through multi-step problems. A distinct reasoning mode exposes the model’s step-by-step thinking, which makes it useful for anyone who wants to follow how an answer was reached rather than just accept it.

Unlike many closed assistants in the chatbots category, DeepSeek has published open-weight models under permissive licenses. That lets developers download, fine-tune, and self-host them, or call the hosted API, which is priced well below many competitors.

Who is it for?

DeepSeek suits students, developers, and researchers who want capable reasoning without a subscription. The free chat covers everyday writing and study help, while the low-cost API and open weights appeal to teams building their own tools on a budget. A web search option helps with recent topics.

Because the service is operated from China, some organizations weigh data handling and hosting before adopting it for sensitive work, and self-hosting the open weights is a common alternative. Feature availability can also differ by region, so it is worth confirming what is offered where you are. For general questions, coding help, and experimentation, DeepSeek is a strong free choice.