PolyAI vs AssemblyAI

Side-by-side comparison · Updated April 2026

 PolyAIPolyAIAssemblyAIAssemblyAI
DescriptionPolyAI delivers advanced voice AI solutions designed to modernize and enhance customer experiences across various industries. Their technology enables businesses to resolve over 50% of calls with consistent high satisfaction scores. With capabilities like real-time analytics, actionable insights, and seamless integration, PolyAI's voice assistant is proven to increase revenue and operational efficiency. Catering to a wide range of industries, PolyAI provides tailored implementations to meet specific business needs.AssemblyAI provides comprehensive Speech-to-Text and Audio Intelligence services, including streaming transcription, key phrase detection, sentiment analysis, summarization, PII redaction, and more. With competitive pricing and the ability to cater to large-scale enterprise solutions, this platform stands as a leader in leveraging voice data for diverse applications.
CategoryConversational AISpeech-To-Text
RatingNo reviewsNo reviews
PricingFreeFreemium
Starting PriceFreeFree
Plans
  • One-timeFree
  • Streaming Speech-to-Text$0.47/mo
  • Audio IntelligenceFree
  • LeMURFree
  • Speech-to-Text$0.37/mo
  • Enterprise SolutionsFree
  • No Pricing InformationFree
  • Products & Services OverviewFree
  • No Pricing Information - Company OverviewFree
  • No Pricing Information - PlaygroundAPI FeaturesFree
  • No Pricing Information - Dashboard & Sign-up FeaturesFree
Use Cases
  • Customer service managers
  • IT departments
  • Marketing teams
  • Operations managers
  • Developers and Engineers
  • Content Creators
  • Educational Institutions
  • Healthcare Providers
Tags
voice AI solutionscustomer experiencesreal-time analyticsactionable insightsseamless integration
Speech-to-TextAudio Intelligencestreaming transcriptionkey phrase detectionsentiment analysis
Features
Over 50% call resolution
Real-time analytics
Seamless integration
24/7 operational capacity
Actionable insights
Improved customer satisfaction
Ongoing performance updates
Multi-language support
Customizable voice assistants
Enhanced revenue generation
Pay-as-you-go pricing with savings on committed usage
Streaming speech-to-text with <600 ms latency
Support for 17+ languages and 1.1 million training hours
High transcription accuracy >90%
Sentiment analysis, summarization, and PII redaction
Customizable vocabulary and spelling
Comprehensive audio intelligence models
LeMUR for sophisticated insights from voice data
Enterprise-level scalability and support
EU Data Residency compliance
 View PolyAIView AssemblyAI

Modify This Comparison

Also Compare

Explore more head-to-head comparisons with PolyAI and AssemblyAI.