Skip to content
A

AssemblyAI

Transcription

Official site consultedAI and speech (global tools)

Last verified: 1 October 2026

AssemblyAI offers voice APIs: pre-recorded transcription in 99 languages, streaming transcription (about 150 ms latency), synchronous transcription of clips up to 120 seconds and a voice agent API. It adds analysis (summaries, sentiment, topics), PII guardrails and an LLM gateway.

Services
  • Pre-recorded transcription (99 languages)
  • Streaming transcription via WebSocket
  • Voice Agent API
  • Speech Understanding: summaries, sentiment, topics
  • Guardrails API and LLM Gateway
Access requirements

Access through HTTP API, WebSocket or official SDKs; the page gives no pricing or free tier details.

Sources