DeepSeek opens its full app stack via API: web search, file parsing, voice, and an open-source demo
APPSO · wechat · 2026-11-14
DeepSeek opened up the core capabilities of its official app — web search, deep-thinking search, file parsing, URL reading, and voice interaction — to third-party developers via API, and shipped an open-source chat demo that can 1:1 replicate the DeepSeek app, complete with history import.
- V4.1-Flash supports the extensions across Messages, Responses, and ChatCompletions; deepseekwebsearch enables auto web/image search with citations, and in thinking mode the model can search and read pages mid-reasoning
- File parsing handles PDF/Office/images server-side; deepseekreadurl auto-fetches linked pages
- Search, Fetch, OCR, ASR, and TTS are also available as standalone APIs, freely composable
- Tool calls are billed separately on top of token costs; a safety-check parameter is included
DeepSeekHarness lead Cui Tianyi: "The next super app doesn't have to be one super app for everyone — everyone can now create a super app." APPSO frames this as the era of a billion people each owning their own app.
Related event: DeepSeek Opens Full App API Suite: Search, Voice, OCR(2 posts)→
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