An AI assistant and open large language models for chat, coding, and reasoning.
DeepSeek offers a free web and mobile chat assistant plus open-weight models accessible via API. As of writing it supports coding, document reading, and long-context conversations.
The web and app assistant are free to use; the API is usage-based.
An account is required to chat and save history.
Information and links are accurate as of the time of writing and may change. Always verify on the official site. This is an independent guide, not affiliated with the listed services.