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AssemblyAI

NewVerified

Enterprise-grade speech-to-text API

Voice & Audio
8.7 (55.316 score)
freemiumAPI Available
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Overview

Powerful speech recognition and audio intelligence platform providing accurate transcription, speaker detection, and content moderation for developers

Pros

  • High accuracy transcription
  • Real-time capabilities
  • Speaker detection
  • Content moderation

Cons

  • Pricing scales with usage
  • Setup requires technical knowledge
  • Integration complexity

Key Features

Speech-to-text
Real-time transcription
Speaker diarization
Content moderation
Word-level confidence

Use Cases

Podcast transcriptionMeeting recording analysisCustomer service recordings

Best For

Software DevelopersContact Center TeamsMedia & Podcast ProducersEnterprise OperationsCompliance & Legal Teams

Frequently Asked Questions

What is AssemblyAI's pricing model?
AssemblyAI charges based on audio duration processed, with pay-as-you-go pricing starting at competitive rates per minute. Volume discounts are available for enterprise customers with higher usage.
How steep is the learning curve for implementing AssemblyAI?
AssemblyAI offers straightforward API documentation and SDKs for popular languages, making integration relatively quick for developers with basic API experience. Most setups take a few hours to a couple of days.
What integrations and API capabilities does AssemblyAI provide?
AssemblyAI offers REST and WebSocket APIs with SDKs for Python, Node.js, and other languages. It integrates with various platforms and supports real-time streaming for live audio processing.
What are the main limitations of AssemblyAI?
Accuracy can vary by audio quality, background noise, and language complexity. Real-time processing requires stable WebSocket connections, and costs scale with usage volume for high-traffic applications.
What is the ideal use case for AssemblyAI?
AssemblyAI is best for applications requiring accurate, enterprise-scale speech-to-text like transcription services, meeting recordings, customer support analytics, and media content processing with speaker identification.

Pricing Plans

Free

Custom
  • Get started with no credit card required
  • Access to Speech-to-Text API
  • Universal-2 model support
  • Pay-as-you-go pricing after free tier

Pay-As-You-GoMost Popular

Custom
  • Universal-3 Pro model at $0.21/hr
  • Universal-2 model at $0.15/hr
  • Add-on features (Keyterms Prompting $0.05/hr, Speaker Diarization $0.02/hr, Medical Mode $0.15/hr)
  • Streaming Speech-to-Text API support

Enterprise

Custom
  • Custom rate limits and enhanced concurrency
  • Enterprise-grade flexibility for AI workloads
  • Dedicated support and SLA
  • Custom pricing based on volume and requirements

Verified Info

Added to directory4/30/2026
Pricing modelfreemium

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