kitio.aiCartesia Sonic vs ZenMic
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Cartesia Sonic starts at $5/mo and ZenMic 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
- AI podcast generator
- Editable scripts
- 30+ AI voices
- Voice cloning and design
- RSS publishing
- Audiograms and clips
| Feature | Cartesia Sonic | ZenMic |
|---|---|---|
| Best for | Low-latency text-to-speech API for voice agents | Turns text, documents and links into podcasts and spoken lessons |
| Category | Audio & voice | Audio & voice |
| Pricing model | Freemium | Freemium |
| Starting price | $5/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | Cartesia | ZenMic |
| Based in | United States | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Cartesia Sonic starts at $5/mo and ZenMic 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
ZenMic
- Full control over the script
- Multi-speaker episodes
- Publishes straight to podcast apps
- Free plan starts with about 10 minutes
- Paid plan prices not shown
- Audio export is MP3 only
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 ZenMic if you want:
- Full control over the script
- Multi-speaker episodes
- Publishes straight to podcast apps
Watch out: free plan starts with about 10 minutes.
Cartesia Sonic vs ZenMic FAQ
What is the difference between Cartesia Sonic and ZenMic?
Cartesia Sonic: Low-latency text-to-speech API for voice agents. ZenMic: Turns text, documents and links into podcasts and spoken lessons. Both are audio & voice tools.
Is Cartesia Sonic or ZenMic cheaper?
Cartesia Sonic starts at $5/mo and ZenMic starts at See pricing page. Check both pricing pages for current plans.
Do Cartesia Sonic and ZenMic have free plans?
Cartesia Sonic: Yes. ZenMic: Yes.
Who makes Cartesia Sonic?
Cartesia Sonic is made by Cartesia, based in United States.
Who makes ZenMic?
ZenMic is made by ZenMic.
Which should I choose, Cartesia Sonic or ZenMic?
Choose Cartesia Sonic if you value very fast time to first audio and wide language coverage in one model. Choose ZenMic if you value full control over the script and multi-speaker episodes.