kitio.aiCartesia Sonic vs SpeakUp Article
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Cartesia Sonic starts at $5/mo and SpeakUp Article 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
- Article to audio conversion
- Multiple languages
- Embeddable audio player
- Publisher mockup pages
- Document narration
| Feature | Cartesia Sonic | SpeakUp Article |
|---|---|---|
| Best for | Low-latency text-to-speech API for voice agents | Turns news articles and blog posts into narrated audio |
| Category | Audio & voice | Audio & voice |
| Pricing model | Freemium | Paid |
| Starting price | $5/mo | See pricing page |
| Free plan | Yes | No |
| Made by | Cartesia | SpeakUp |
| 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 SpeakUp Article 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
SpeakUp Article
- Built specifically for publishers
- Free mockup on your own content
- Handles long-form articles
- Prices not shown on the homepage
- Less suited to individual users
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 SpeakUp Article if you want:
- Built specifically for publishers
- Free mockup on your own content
- Handles long-form articles
Watch out: prices not shown on the homepage.
Cartesia Sonic vs SpeakUp Article FAQ
What is the difference between Cartesia Sonic and SpeakUp Article?
Cartesia Sonic: Low-latency text-to-speech API for voice agents. SpeakUp Article: Turns news articles and blog posts into narrated audio. Both are audio & voice tools.
Is Cartesia Sonic or SpeakUp Article cheaper?
Cartesia Sonic starts at $5/mo and SpeakUp Article starts at See pricing page. Check both pricing pages for current plans.
Do Cartesia Sonic and SpeakUp Article have free plans?
Cartesia Sonic: Yes. SpeakUp Article: No.
Who makes Cartesia Sonic?
Cartesia Sonic is made by Cartesia, based in United States.
Who makes SpeakUp Article?
SpeakUp Article is made by SpeakUp.
Which should I choose, Cartesia Sonic or SpeakUp Article?
Choose Cartesia Sonic if you value very fast time to first audio and wide language coverage in one model. Choose SpeakUp Article if you value built specifically for publishers and free mockup on your own content.