AssemblyAI vs Gladia
A side-by-side comparison of AssemblyAI and Gladia, two Voice tools, drawn from Ignaite's continuously-verified listings.
Compared from listings verified as of
At a glance
| Attribute | AssemblyAI | Gladia |
|---|---|---|
| Category | Voice | Voice |
| Pricing | FREEMIUM | FREEMIUM |
| License | Proprietary | Proprietary |
| Deployment | Cloud | Cloud |
| Platforms | API | API |
| Model support | Single model (proprietary) | Single model (proprietary) |
| Vendor (differs) | AssemblyAI | Gladia |
| Capabilities (differs) |
|
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The honest brief
AssemblyAI
Layers Speech Understanding — summaries, sentiment, PII redaction — over accurate transcription, billed per second.
- High transcription accuracy
- Speaker diarization & language detection
- Batch + real-time streaming
- Per-second pay-as-you-go, free credit
- Cloud-only, no self-host
- Higher latency than speed-first rivals
- Costs scale with audio volume
- English strongest, others vary
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
When to pick which
Both cover Transcription (STT), Speaker diarization, and Summarization.
Pick AssemblyAI if you need Content moderation and Translation.
- Content moderation (secondary capability)
- Translation (secondary capability)
Pick Gladia if you need Speech translation and Structured extraction.
- Speech translation (secondary capability)
- Structured extraction (secondary capability)