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-optimal
- Coval
- cost–accuracy frontier
- Speko
- cost–robustness frontier
Lowest price
- Coval
- 1st of 19 models
- Speko
- 1st of 31 models
Accurate pronunciation
- Coval
- 4th of 19 models
- Speko
- 8th 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. Airy TTS on Plan C; Cartesia approximate (Scale plan).
2k
characters / sec
Up to 20× faster
0.2 s
total response time
Full audio, not first chunk
Measured client-side from US West with a 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
Generates audio in a tenth of its length, 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.