kitio.aiCartesia Sonic vs EchoVoiceAI
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Cartesia Sonic has the lower starting price: about $5 a month, against $10 for EchoVoiceAI.
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
- Voice design
- Voice cloning from samples
- Text to speech in 42 languages
- Voice library
- Emotion and prosody control
| Feature | Cartesia Sonic | EchoVoiceAI |
|---|---|---|
| Best for | Low-latency text-to-speech API for voice agents | Voice design, cloning and text to speech for creators |
| Category | Audio & voice | Audio & voice |
| Pricing model | Freemium | Paid |
| Starting price | $5/mo | $9.99/mo |
| Free plan | Yes | No |
| Made by | Cartesia | EchoVoiceAI |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
|
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Pricing compared
Cartesia Sonic has the lower starting price: about $5 a month, against $10 for EchoVoiceAI.
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
2 plans
Standard
$9.99/mo
- 60,000 model characters
- 5 voice clone roles
- 5 voice design roles
Advanced
$29.99/mo
- 200,000 model characters
- 20 voice clone roles
- 20 voice design roles
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
EchoVoiceAI
- Design and clone voices in one tool
- 42 languages
- Yearly plans lower the monthly cost
- No free plan listed
- Character allowance limits heavy use
- Cloning requires authorized samples
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 EchoVoiceAI if you want:
- Design and clone voices in one tool
- 42 languages
- Yearly plans lower the monthly cost
Watch out: no free plan listed.
Cartesia Sonic vs EchoVoiceAI FAQ
What is the difference between Cartesia Sonic and EchoVoiceAI?
Cartesia Sonic: Low-latency text-to-speech API for voice agents. EchoVoiceAI: Voice design, cloning and text to speech for creators. Both are audio & voice tools.
Is Cartesia Sonic or EchoVoiceAI cheaper?
Cartesia Sonic has the lower starting price: about $5 a month, against $10 for EchoVoiceAI.
Do Cartesia Sonic and EchoVoiceAI have free plans?
Cartesia Sonic: Yes. EchoVoiceAI: No.
Who makes Cartesia Sonic?
Cartesia Sonic is made by Cartesia, based in United States.
Who makes EchoVoiceAI?
EchoVoiceAI is made by EchoVoiceAI.
Which should I choose, Cartesia Sonic or EchoVoiceAI?
Choose Cartesia Sonic if you value very fast time to first audio and wide language coverage in one model. Choose EchoVoiceAI if you value design and clone voices in one tool and 42 languages.