kitio.aiAdded Oct 28, 2026
Cartesia
Freemium · $5/moLow-latency text-to-speech and speech-to-text models for voice apps
What is Cartesia?
Cartesia builds the Sonic text-to-speech and Ink speech-to-text models, designed for real-time voice agents where latency matters. Developers use its API to give apps and phone agents fast, natural voices, and voices can be cloned from about ten seconds of audio.
Sonic streams audio within tens of milliseconds, supports many languages, and accepts controls for speed and emotion. A playground lets you test voices before integrating, and the Line platform helps teams build and deploy full voice agents. Every plan includes unlimited seats.
Features
- Sonic streaming TTS
- Ink speech-to-text
- Instant voice cloning
- Emotion and speed controls
- Voice agent platform
Tags
Releases
+ Submit new release- Listed
Cartesia was added to the directory.
Organization
Cartesia
🇺🇸 United States
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Freemium
- Paid options from
- $5/mo
- Billing frequency
- Monthly
Cartesia plans
Free
Free
- 20K credits/month
- $1 prepaid agents/month
- Text to speech and speech to text
Pro
$5/mo
- 100K credits/month
- Commercial use license
- Instant voice cloning
Startup
$49/mo
- 1.25M credits/month
- Pro voice cloning
Scale
$299/mo
- 8M credits/month
- Priority support
- High concurrency limits
Enterprise
Custom
- Volume pricing
- DPAs and BAAs
- SSO
Prices in USD, checked Oct 28, 2026. Plans change often, so confirm on the Cartesia site.Official pricing
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Compare Cartesia
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Pros and cons
Pros
- Very low latency for real-time use
- Cheap entry plan with commercial rights
- Strong voice quality rankings
Cons
- Built for developers, not casual users
- Agent usage billed separately
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Q&A
What is Cartesia?
Cartesia builds the Sonic text-to-speech and Ink speech-to-text models, designed for real-time voice agents where latency matters. Developers use its API to give apps and phone agents fast, natural voices, and voices can be cloned from about ten seconds of audio.
How much does Cartesia cost?
Cartesia is freemium, with paid plans from $5/mo.
Is there a free version of Cartesia?
Yes. Cartesia has a free plan, and paid plans add more usage and features.
What are the main features of Cartesia?
Sonic streaming TTS, Ink speech-to-text, Instant voice cloning, Emotion and speed controls, Voice agent platform.
Who makes Cartesia?
Cartesia is made by Cartesia.
What are the best alternatives to Cartesia?
Popular alternatives include ElevenLabs, Amazon Polly, Azure Speech.