# DeepSeek opens its app's search, file, link, safety and voice features to API developers



DeepSeek



V4.1-Flash now supports web search, deep-thinking search, file parsing, URL reading and safety checks across the Messages, Responses and Chat Completions APIs. Public-facing apps must turn on safety checks. OCR, ASR and TTS are also available as standalone APIs, and tool use is billed on top of regular token charges.

- Effective time: Nov 13, 2026 22:24 · Beijing Time (UTC+8)
- Review updated: Nov 14, 2026 00:43 Sat · Beijing Time (UTC+8)

## Sources

- Source excerpt: https://x.com/deepseek_ai/status/2121247896918253875
- Source excerpt: https://x.com/deepseek_ai/status/2121247899699036516
- Source excerpt: https://x.com/deepseek_ai/status/2121247903603941471

Canonical entry: https://www.ailyre.com/source/?id=deepseek-app-capabilities-api-2026-11-13&lang=en