Private by design
Text and audio never leave the device. Nothing to send, nothing to leak.
#1 lowest price on Coval & Speko benchmarks
Voice AI at the cost–accuracy frontier
Frontier-quality voice, priced for everyday use.
Listen to Airy TTS
Model
Airy TTS is our in-house zero-shot speech model, proven on independent benchmarks.
Supported languages: English · Korean · Chinese · Arabic · Hindi · Thai · Vietnamese
Pareto frontier
- Coval
- cost–accuracy
- Speko
- cost–robustness
#1 lowest price
- Coval
- of 19 models
- Speko
- of 31 models
Airy StudioFree
A free TTS editor for your scripts, videos, and narration.
100+ voices · 7 languages · No ads · No install needed
Airy API
The fastest, cheapest TTS for your product.
Streaming · 100+ voices · 7 languages · Free credits to start
$2
per 1M characters
Up to 95% cheaper
Public list prices per 1M English characters, Oct 2026. Cartesia approximate (Scale plan).
2k
characters / sec
Up to 20× faster
0.2 s
total response time
Full audio, not first chunk
Client-side, US West, 495-character English sentence (about 27 s of audio).
Airy On-Device
Airy TTS that runs entirely on your device with the same quality you get from Studio and API.
Frontier quality · Zero network latency · Works offline
Faster than real-time
Speech is generated ten times faster than it plays, so voice starts right away.
Zero cost per call
Use it as much as you like, with no API call fees.
Contact
Partnerships and enterprise inquiries.