kitio.aiCartesia Sonic vs Voxygen
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Cartesia Sonic starts at $5/mo and Voxygen 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
- Real-time speech under 90ms
- 44 languages
- Instant voice cloning
- Emotion and laughter control
- Voice localisation
- Cloud TTS API
- On-premise TTS server
- Offline embedded TTS
- TTS studio for audio messages
- Custom brand voices
| Feature | Cartesia Sonic | Voxygen |
|---|---|---|
| Best for | Low-latency text-to-speech API for voice agents | French text-to-speech provider for apps, voicebots and brand voices |
| Category | Audio & voice | Audio & voice |
| Pricing model | Freemium | Paid |
| Starting price | $5/mo | See pricing page |
| Free plan | Yes | No |
| Made by | Cartesia | Voxygen |
| Based in | United States | France |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Cartesia Sonic starts at $5/mo and Voxygen starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
5 plans
Free
Free
- 20K credits per month
- Text to speech and speech to text
- $1 of prepaid voice agent usage
Pro
$5/mo
- 100K credits per month
- Commercial use license
- Instant voice cloning
Startup
$49/mo
- 1.25M credits per month
- Professional voice cloning
- $49 of prepaid agent usage
Scale
$299/mo
- 8M credits per month
- Priority support
- High concurrency limits
Enterprise
Contact sales
- Custom credits and volume pricing
- SSO and DPAs
- Shared Slack channel
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Cartesia Sonic
- Very fast time to first audio
- Wide language coverage in one model
- Cloning from ten seconds of audio
- Aimed at developers more than casual users
- Credit system takes a while to understand
- Commercial license needs a paid plan
Voxygen
- On-premise and offline options
- Long track record in speech synthesis
- Custom voices for large brands
- No public pricing
- Site is mostly in French
- Geared to enterprise projects
Which one should you choose?
Choose Cartesia Sonic if you want:
- Very fast time to first audio
- Wide language coverage in one model
- Cloning from ten seconds of audio
Watch out: aimed at developers more than casual users.
Choose Voxygen if you want:
- On-premise and offline options
- Long track record in speech synthesis
- Custom voices for large brands
Watch out: no public pricing.
Cartesia Sonic vs Voxygen FAQ
What is the difference between Cartesia Sonic and Voxygen?
Cartesia Sonic: Low-latency text-to-speech API for voice agents. Voxygen: French text-to-speech provider for apps, voicebots and brand voices. Both are audio & voice tools.
Is Cartesia Sonic or Voxygen cheaper?
Cartesia Sonic starts at $5/mo and Voxygen starts at See pricing page. Check both pricing pages for current plans.
Do Cartesia Sonic and Voxygen have free plans?
Cartesia Sonic: Yes. Voxygen: No.
Who makes Cartesia Sonic?
Cartesia Sonic is made by Cartesia, based in United States.
Who makes Voxygen?
Voxygen is made by Voxygen, based in France.
Which should I choose, Cartesia Sonic or Voxygen?
Choose Cartesia Sonic if you value very fast time to first audio and wide language coverage in one model. Choose Voxygen if you value on-premise and offline options and long track record in speech synthesis.