G2 Vendor Directory

AssemblyAI - Speech to Text API vs. Speechmatics

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

MetricAssemblyAI - Speech to Text API

by AssemblyAI

Speechmatics

by Speechmatics

Overall rating4.64.7
Review count12682
Ease of use9.29.3
Ease of setup9.29.0
Quality of support9.09.2
Meets requirements9.19.3
NPS76.882.716049
Small Business78.8%54.9%
Mid-Market16.8%30.5%
Enterprise4.4%14.6%
Total page views753842
Total LLM citations73,60541,745

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

Speechmatics

Speechmatics: Best-in-Market Speech-to-Text & Voice AI for Enterprises Speechmatics delivers industry-leading Speech-to-Text and Voice AI solutions, designed for enterprises that demand best-in-class accuracy, security, and flexibility. Our enterprise-grade APIs provide real-time and batch transcription with unmatched precision—across the widest range of languages, dialects, and accents. Built on Foundational Speech Technology, Speechmatics powers mission-critical voice applications, from media & entertainment to contact centers, financial services, healthcare and beyond.

Pros

  • Accuracy
  • Transcription Accuracy
  • Ease of Use
  • Transcription
  • Efficiency
  • Speed