G2 Vendor Directory

AssemblyAI - Speech to Text API vs. IBM Watson Speech to Text

A side-by-side comparison based on G2 review data.

MetricAssemblyAI - Speech to Text API

by AssemblyAI

IBM Watson Speech to Text

by IBM

Overall rating4.64.1
Review count12617
Ease of use9.28.8
Ease of setup9.28.6
Quality of support9.08.8
Meets requirements9.18.0
NPS76.829.411765
Small Business78.8%43.8%
Mid-Market16.8%37.5%
Enterprise4.4%18.8%
Total page views753169
Total LLM citations73,6052,948

AssemblyAI - Speech to Text API

Founded in 2017 and headquartered in San Francisco, AssemblyAI is a Voice AI platform serving over 200,000 developers worldwide. AssemblyAI specializes in providing speech recognition and understanding capabilities through API-based services, with a focus on conversation intelligence and voice agent applications. Companies ranging from early-stage startups to Fortune 500 enterprises across technology, healthcare, legal, and telecommunications industries rely on this comprehensive speech processing API.

Pros

  • Accuracy
  • Ease of Use
  • Transcription Accuracy
  • Transcripts
  • Speed
  • Implementation Ease

IBM Watson Speech to Text

Watson Speech to Text is a cloud-native solution that uses deep-learning AI algorithms to apply knowledge about grammar, language structure, and audio/voice signal composition to create customizable speech recognition for optimal text transcription. Check out Watson Speech to Text in action, with our free trial: https://ibm.biz/speechtotexttrial Live demo also available - http://ibm.biz/speechtotextdemo

Pros

  • Accuracy
  • Real-time Transcription
  • Multilingualism
  • Transcription Accuracy
  • Speech to Text Conversion
  • Helpful