DeepSeek

Open-weight language models with a chat app, desktop app and developer API.

DeepSeek is an AI research company that builds and open-sources large language models, including the DeepSeek-V4, R1 reasoning and Coder families. People can use its models through a web chat, mobile and desktop apps, or the DeepSeek API platform with web search and fetch tools. Check the official site for current app and API pricing.