AssemblyAI is a company whose developer APIs transcribe recorded and live speech and then analyse what was said.
In plain words
You send AssemblyAI an audio or video file and get back a transcript, with extras such as labelling who spoke and hiding personal details. A streaming API handles live audio for things like captions and voice agents. Further APIs work on the transcript itself, for example summarising it or detecting sentiment and topics.
A quick example
Imagine a podcast team uploading an episode. The API returns the full text with each speaker marked, then a second step produces a short summary and a list of topics they can use for show notes.
Where you'll meet it
- Transcribing recorded audio and video.
- Live captions and voice agents.
- Call centre tools that analyse conversations.
Related
Sources
- DocsAssemblyAI documentation, AssemblyAI Docs · read 29 Sept 2026
- DocsQuickstart: transcribe an audio file, AssemblyAI Docs · read 29 Sept 2026
Checked by WhatIsAI against the sources above · 29 Sept 2026. Spotted an error? Report it.