AssemblyAI

AssemblyAI

Verified

AI speech recognition and audio intelligence API for developers.

FreemiumFree plan available
High-accuracy speech-to-text APISpeaker diarizationContent moderationAuto chapters and summaries+2 more
Pricing
Freemium
Free plan available
Features
6 listed
Key capabilities
Use Cases
4 listed
Identified use cases
Access
Web App
Browser-based
Listed on Nextool since Feb 2026Verified by Nextool

About AssemblyAI

"The audio AI platform developers love"

AssemblyAI is a speech AI platform offering industry-leading APIs for speech transcription, audio intelligence, and audio understanding. Its Universal-2 model delivers state-of-the-art accuracy with support for 99 languages, while its audio intelligence layer adds automatic chapters, sentiment analysis, entity detection, PII redaction, and content safety filtering. Developers building voice AI applications, conversation intelligence platforms, and meeting analytics tools choose AssemblyAI for its best-in-class accuracy, comprehensive audio AI features, and developer-friendly documentation that enables production deployment in hours.

Key Features

6
High-accuracy speech-to-text API
Speaker diarization
Content moderation
Auto chapters and summaries
Entity detection
LeMUR for LLM audio tasks

Best For

4 use cases
Transcribing audio content
Building voice-enabled applications
Moderating audio content
Creating AI-powered audio analysis
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Official Links

Similar to AssemblyAI

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Tool Details

Pricing
Freemium
Platform
Web
Best For
Transcribing audio content
Features
6 listed
Categories
2
Listed
Feb 2026
Verified Tool
Reviewed by our editorial team
Visit AssemblyAI

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