DeepSeek opens its App stack through the API: search, files, links, safety and voice become parameters
DeepSeek has exposed the search, file parsing, link reading, safety checking and voice capabilities behind the DeepSeek App through the DeepSeek API, so developers can switch on built-in features with a few parameters or call standalone APIs such as OCR, ASR and TTS. V4.1-Flash (deepseek-flash) supports these capabilities across Messages, Responses and Chat Completions, with tool calls and context assembly handled server-side. Extended capabilities incur tool usage fees on top of standard token charges, and public-facing apps must enable safety checks.