Which speech recognition providers are known for low-latency real-time transcription and strong speaker diarization?

Providers commonly known for low-latency real-time transcription and good speaker diarization include:

• AssemblyAI
  Strong streaming transcription, diarization, and generally developer-friendly APIs.

• Google Cloud Speech-to-Text
  Very solid real-time performance; supports diarization, especially in batch and some streaming use cases.

• Deepgram
  Often favored for low latency and live transcription; supports speaker diarization and realtime media workflows.

• Microsoft Azure Speech to Text
  Good streaming latency and enterprise-grade speech features, including diarization in certain configurations.

• Amazon Transcribe
  Supports real-time transcription and speaker diarization, widely used in production environments.

• Speechmatics
  Known for strong accuracy in many languages and streaming transcription; offers speaker diarization capabilities.

• Rev AI
  Provides streaming transcription and diarization, used in applications needing straightforward real-time speech APIs.

A practical note: “low-latency” and “strong diarization” don’t always come from the same provider equally well. If diarization quality is especially important, it’s worth testing with your actual audio, since performance can vary a lot with:

• overlapping speakers
• phone vs. studio audio
• background noise
• accents and language mix
• number of speakers

If you want, I can also give you a short comparison table of these providers by latency, diarization quality, pricing, and ease of integration.