Liang Sheng drops another big move: anyone can now hand-build a DeepSeek App

What happened: DeepSeek opened its full application API, integrating web search, deep thinking search, file input, and link reading into its existing API. It also released standalone tool interfaces for search, web scraping, OCR, speech recognition, and speech synthesis. Key numbers: DeepSeek-V4.1-Flash (deepseek-flash) supports the new capabilities across Messages, Responses, and Why it matters: DeepSeek says developers can now replicate the complete DeepSeek App 1:1, and tool calls plus context assembly are handled server side, lowering the barrier to building complex AI applications.

DeepSeek opened its full application API, integrating web search, deep thinking search, file input, and link reading into its existing API. It also released standalone tool interfaces for search, web scraping, OCR, speech recognition, and speech synthesis.

DeepSeek says developers can now replicate the complete DeepSeek App 1:1, and tool calls plus context assembly are handled server side, lowering the barrier to building complex AI applications.