Build AI notetakers users actually keep using
Most AI notetakers get dropped because the transcript isn't usable. AssemblyAI gives you the accuracy, speaker clarity, and human-readable output that turns your product into something users can't work without.
The Voice AI that separates good meeting notes from great ones
Real meetings are messy — crosstalk, accents, jargon, bad audio. AssemblyAI handles all of it, so you're not the one fielding support tickets.
Accuracy that shows up in every transcript
Build meeting intelligence that works consistently across real-world conversation scenarios.
-
30% fewer hallucinations than leading alternatives, with a 94.1% word accuracy rate across real-world audio conditions - Automatically capture names, domain terms, and industry vocabulary — no custom training required
- Sub-second latency for live transcription and high-fidelity async output for UI display — both supported out of the box
From raw audio to structured intelligence
Transcription is table stakes. AssemblyAI gives you the layers to surface action items, track decisions, and understand what actually happened in every meeting.
- Speaker diarization that reliably separates voices — even with crosstalk, far-field audio, and in-person recording conditions
- Automatic topic detection, sentiment analysis, and summarization built in — no extra pipeline to stitch together
- Word-level timestamps and confidence scores for search, playback sync, and downstream automation
Production-ready from day one
Start with a free API key. Scale to millions of meetings without renegotiating contracts or managing infrastructure.
- Concurrent transcription across thousands of simultaneous sessions — consistent latency at any volume
- SOC 2 compliant with zero data retention — meets enterprise security requirements without custom configurations
- 99.9% uptime SLA with dedicated support — not just docs and a Discord
The best AI notetakers are built on AssemblyAI.
See how Fireflies, Grain, Zoom, and others turned speech into a core product advantage.
Universal-3 Pro is optimized for real world conversations
Tested on diverse data sets, Universal-3 Pro delivers low missed entity rates on real world audio.
Meeting intelligence features you can ship with confidence
Every feature you'd otherwise have to build yourself — accurate, well-documented, and ready to ship.
Speaker Diarization
Reliably detect multiple speakers and what they're saying with the highest accuracy in the industry.
Summarization
Turn hours of audio into concise, actionable insights with automatic summarization.
Sentiment Analysis
Capture speaker sentiment accurately for informed business decisions and problem solving.
Word Timings
Get granular timing data to sync conversation analysis and improve task automation.
Topic Detection
Spot trends and areas of importance by identifying key conversation topics.
PII Redaction
Safeguard sensitive information automatically to ensure privacy and compliance.
Modern tools for superior intelligence
Build expertly, scale effortlessly
See how Zoom, Grain, and Supernormal built industry-leading meeting products on AssemblyAI.
Frequently Asked Questions
Unlock the value of voice data
Build what’s next on the platform powering thousands of the industry’s leading of Voice AI apps.
