> ## Documentation Index
> Fetch the complete documentation index at: https://prices.voicegateway.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Cartesia TTS pricing

> 1 TTS model(s) from Cartesia, with the rate and where it came from.

Priced from `input_kchars`, US dollars per 1,000 characters of input text. Shown per 1M characters, the unit vendors quote. Source of truth: [`prices/providers/cartesia.yml`](https://github.com/mahimailabs/voice-prices/blob/main/prices/providers/cartesia.yml).

| Model                       | Name    | \$ / 1M chars |                                          Source | Last verified |
| --------------------------- | ------- | ------------: | ----------------------------------------------: | ------------: |
| `sonic-3` <sup>voices</sup> | Sonic-3 |          \$40 | <Badge color="green" size="sm">verified</Badge> |    2026-05-27 |

* `voices` some voice classes cost a multiple of the base rate.

What `verified`, `imported`, and `seed` mean is on [How Fresh?](/how-fresh). A rate that looks wrong is worth [reporting](https://github.com/mahimailabs/voice-prices/issues/new?template=add-provider.yml).