DeepSeek
Japanese DeepSeek（ディープシーク）
DeepSeek is a generative AI made by a company in Hangzhou, China, with a free chat screen and openly published model weights. What you type into its official app and website is stored on servers in China, so decide first what you will put in.
DeepSeek is a chat AI made by Hangzhou DeepSeek Artificial Intelligence, a company in Hangzhou, China. You type a question at chat.deepseek.com and it answers, and the V4 series released in April 2026 can be used in two modes, Expert and Instant. Its model weights (the files holding what the AI has learned) are published under the MIT License, so with enough equipment you can run it on your own computer. It is like a dish you can eat at the restaurant or cook at home from the published recipe.
Watch out DeepSeek's privacy policy says it collects the text you enter, files you upload and your chat history, stores them on servers in China, and may use them to train its models. Korea's Personal Information Protection Commission recommended in April 2025 that DeepSeek put a proper legal basis in place for sending data abroad, and Japan's commission noted that Chinese law applies to the data. Keep customer information and internal documents out of the official app and website.
Source: DeepSeek V4 Preview Release | DeepSeek API Docs · deepseek-ai/DeepSeek-V4-Pro · Hugging Face · DeepSeek Privacy Policy · Results of the PIPC's 9th Plenary Meeting · Information on DeepSeek (checked 2026-10-26)