AssemblyAI
AssemblyAI provides a comprehensive API platform for building voice-enabled applications, focusing on high-accuracy speech recognition and understanding models.
Free + paidMobileDesktopAPILLM-basedMultimodal
Visit websiteassemblyai.com
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AssemblyAI provides a comprehensive API platform for building voice-enabled applications, focusing on high-accuracy speech recognition and understanding models. Its key capabilities include streaming and pre-recorded transcription with the industry's lowest Word Error Rate (WER), advanced speaker diarization to identify distinct speakers, and automatic formatting of text. The platform scales seamlessly to millions of users, handling over 840 million API calls monthly, and supports automatic language detection across multiple languages. Ideal for developers and AI companies requiring reliable speech data processing, it offers usage-based pricing starting with a free tier that includes hundreds of hours of transcription.
Key features
- Streaming and pre-recorded speech-to-text
- Advanced speaker diarization
- Automatic language detection and formatting
Pricing
Use cases
- Conversation Intelligence
- Customer support agents
- Voice AI app development
Who it is for
DevelopersVoice AI companies
Integrations
ZapierMake (Integromat)Python SDKJavaScript SDKNode.js
Tags
API
How we verified this
Company, pricing, and feature details come from the primary sources below and our latest verification pass. When sources disagree, the official source and the most recent check win.
Last verified 08/02/2026Verified sources: 1
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