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Gladia vs Soniox

A side-by-side comparison of Gladia and Soniox, two Voice tools, drawn from Ignaite's continuously-verified listings.

Compared from listings verified as of

Gladia

Voice

Real-time speech-to-text and audio intelligence through a single API.

View Gladia

Soniox

Voice

One speech AI API for real-time transcription, TTS, and translation.

View Soniox

At a glance

Feature comparison of Gladia and Soniox
AttributeGladiaSoniox
CategoryVoiceVoice
PricingFREEMIUMFREEMIUM
LicenseProprietaryProprietary
DeploymentCloudCloud
Platforms (differs)APIAPI, Web, iOS
Model supportSingle model (proprietary)Single model (proprietary)
Vendor (differs)GladiaSoniox

The honest brief

Gladia

Sub-300ms multilingual real-time transcription with EU data residency — a GDPR-friendly alternative to US-hosted Deepgram and AssemblyAI.

  • Low-latency real-time streaming
  • 100+ languages with strong accent handling
  • GDPR, HIPAA, and SOC 2 compliant
  • Generous free tier and pay-as-you-go
  • API-only, no end-user app
  • Proprietary models
  • Younger than incumbent STT rivals

Soniox

Unifies real-time STT, TTS, and any-to-any speech translation in one low-cost API (~$0.10-0.12/hr) where rivals split these across separate products.

  • 60+ languages, mid-sentence switching
  • Real-time + async in one API
  • Speech-to-speech translation
  • Low per-hour pricing
  • Smaller brand than incumbents
  • Free credits tightened over abuse
  • Token-based pricing takes math
Gladia detailsSoniox detailsAll Voice apps