DeepSeek

DeepSeek is a next-generation large language model system developed by DeepSeek AI, designed for flexible AI assistance across a wide range of tasks including casual Q&A, content creation, complex reasoning, and code generation. It features two modes: DeepSeek-Chat for fast, straightforward answers, and DeepSeek-Reasoner for in-depth step-by-step reasoning. The platform offers free basic use via web chat and mobile apps, with a pay-as-you-go API pricing model based on token usage. DeepSeek also provides open-weight model releases under MIT license for self-hosting and developer use. It supports multilingual interactions, with strongest performance in English and Chinese. Safety and privacy policies govern usage, and users are advised to avoid sharing sensitive information.