kitio.aiDeepgram vs Soniox
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Deepgram starts at See pricing page and Soniox starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Category
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Nova speech-to-text
- Real-time streaming
- Speaker diarization
- Aura text-to-speech
- Voice agent API
- Self-hosted deployment
- Real-time and async transcription
- 60+ languages
- Speaker diarization
- Mid-sentence language switching
- Agent echo cancellation
- Python and Node SDKs
| Feature | Deepgram | Soniox |
|---|---|---|
| Best for | Speech-to-text, text-to-speech and voice agent APIs for developers | Multilingual speech-to-text API for voice agents and transcription |
| Category | Audio & voice | Audio & voice |
| Pricing model | Freemium | Paid |
| Starting price | See pricing page | See pricing page |
| Free plan | Yes | No |
| Made by | Deepgram | Soniox |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
|
Both offer: Speaker diarization.
Pricing compared
Deepgram starts at See pricing page and Soniox starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Pay As You Go
$200 free credit, then usage
- All public model endpoints
- Speech-to-text from $0.0043/min
- For developers and startups
Growth
$4K+ / year
- Prepaid annual credits
- Lower per-minute rates
- For growing applications
Enterprise
Contact sales
- Large volumes and custom models
- Deployment and support options
3 plans
Async speech-to-text
$0.10 / hour
- File transcription
- Token-based billing
Real-time speech-to-text
$0.12 / hour
- Streaming transcription
- Same model as async
Text-to-speech
$0.70 / hour
- Generated speech
- Token-based billing
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Deepgram
- Low latency for live audio
- Competitive per-minute pricing
- Self-hosting option
- Developer-only, no consumer app
- Accuracy varies by language
Soniox
- Very low price per hour
- Strong multilingual support
- Features designed for voice agents
- Token-based billing takes some math
- Developer API, not a finished app
- Advanced features need integration work
Which one should you choose?
Choose Deepgram if you want:
- Low latency for live audio
- Competitive per-minute pricing
- Self-hosting option
Watch out: developer-only, no consumer app.
Choose Soniox if you want:
- Very low price per hour
- Strong multilingual support
- Features designed for voice agents
Watch out: token-based billing takes some math.
Deepgram vs Soniox FAQ
What is the difference between Deepgram and Soniox?
Deepgram: Speech-to-text, text-to-speech and voice agent APIs for developers. Soniox: Multilingual speech-to-text API for voice agents and transcription. Both are audio & voice tools.
Is Deepgram or Soniox cheaper?
Deepgram starts at See pricing page and Soniox starts at See pricing page. Check both pricing pages for current plans.
Do Deepgram and Soniox have free plans?
Deepgram: Yes. Soniox: No.
Who makes Deepgram?
Deepgram is made by Deepgram, based in United States.
Who makes Soniox?
Soniox is made by Soniox.
Which should I choose, Deepgram or Soniox?
Choose Deepgram if you value low latency for live audio and competitive per-minute pricing. Choose Soniox if you value very low price per hour and strong multilingual support.