G2 Vendor Directory

OpenAI Whisper vs. AssemblyAI - Speech to Text API

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

MetricOpenAI Whisper

by OpenAI

AssemblyAI - Speech to Text API

by AssemblyAI

Overall rating4.44.6
Review count52126
Ease of use9.09.2
Ease of setup8.79.2
Quality of support8.59.0
Meets requirements8.79.1
NPS58.82352976.8
Small Business62.7%78.8%
Mid-Market27.5%16.8%
Enterprise9.8%4.4%
Total page views888753
Total LLM citations20,57073,605

OpenAI Whisper

Whisper is a general-purpose speech recognition model. It is trained on a large dataset of diverse audio and is also a multitasking model that can perform multilingual speech recognition, speech translation, and language identification.

Pros

  • Accuracy
  • Implementation Ease
  • Multilingualism
  • Documentation
  • Noise Cancellation

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