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Prompt

real time speech to text api

Artificial Intelligence / Speech & Voice AI1 observationLast seen Oct 11, 2026

Latest observation

Oct 11, 2026OpenAI APIWeb search: off

If you want real-time speech-to-text (STT) APIs, here are some good options:

Popular real-time STT APIs

  1. OpenAI Realtime / Transcription

    • Best for low-latency streaming use cases.
    • Supports live audio input and transcription.
    • Good if you also want conversation/agent features.

  2. Google Cloud Speech-to-Text

    • Strong streaming recognition.
    • Good accuracy and language support.

  3. Deepgram

    • Designed for real-time transcription.
    • Very low latency, easy streaming API.

  4. AssemblyAI

    • Streaming transcription available.
    • Good developer experience and extra features like summarization.

  5. Azure Speech to Text

    • Reliable streaming STT.
    • Good for Microsoft ecosystem.

  6. AWS Transcribe Streaming

    • Real-time transcription from live audio.
    • Fits well if you already use AWS.

Common choices by use case

  • Lowest latency / live captions: Deepgram, OpenAI Realtime
  • Enterprise cloud ecosystem: Google, Azure, AWS
  • Extra NLP features: AssemblyAI
  • Custom voice agent apps: OpenAI Realtime

Example architecture

  • Capture microphone audio in browser/app
  • Stream audio chunks over WebSocket/WebRTC
  • Receive partial transcripts in real time
  • Finalize transcript when speech ends

If you want to build it

I can help you with:

  • a WebSocket streaming STT example
  • browser JavaScript
  • Python backend
  • Node.js backend
  • React live transcription UI

If you want, I can also recommend the best API for your exact use case.

Brands

Openai RealtimeGoogle Cloud Speech To TextDeepgramAssemblyAIAzure Speech To TextAws Transcribe Streaming

Observation history

How did Obsurfable measure this prompt?

Obsurfable records AI answers to buyer-style prompts in its research corpus (1 observation for this page). Metrics are distributions over observations, not a single static ranking.

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