kitio.aiCartesia Sonic vs SpeechEasy
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Cartesia Sonic starts at $5/mo and SpeechEasy 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
- Text to speech
- Web link to audio
- Desktop and mobile playback
- Downloadable audio files
| Feature | Cartesia Sonic | SpeechEasy |
|---|---|---|
| Best for | Low-latency text-to-speech API for voice agents | Converts text or a web link into synthetic voice audio |
| Category | Audio & voice | Audio & voice |
| Pricing model | Freemium | Freemium |
| Starting price | $5/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | Cartesia | SpeechEasy |
| 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 SpeechEasy 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
SpeechEasy
- Turns web pages into audio directly
- Simple to use
- Free to start
- Voice and language range not stated
- Several use cases still coming soon
- Pricing details not published on the homepage
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 SpeechEasy if you want:
- Turns web pages into audio directly
- Simple to use
- Free to start
Watch out: voice and language range not stated.
Cartesia Sonic vs SpeechEasy FAQ
What is the difference between Cartesia Sonic and SpeechEasy?
Cartesia Sonic: Low-latency text-to-speech API for voice agents. SpeechEasy: Converts text or a web link into synthetic voice audio. Both are audio & voice tools.
Is Cartesia Sonic or SpeechEasy cheaper?
Cartesia Sonic starts at $5/mo and SpeechEasy starts at See pricing page. Check both pricing pages for current plans.
Do Cartesia Sonic and SpeechEasy have free plans?
Cartesia Sonic: Yes. SpeechEasy: Yes.
Who makes Cartesia Sonic?
Cartesia Sonic is made by Cartesia, based in United States.
Who makes SpeechEasy?
SpeechEasy is made by SpeechEasy.
Which should I choose, Cartesia Sonic or SpeechEasy?
Choose Cartesia Sonic if you value very fast time to first audio and wide language coverage in one model. Choose SpeechEasy if you value turns web pages into audio directly and simple to use.