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# Models and pricing

All prices are in USD. Models ending in `:free` are free to use within their [endpoint-specific usage limits](/rate-limits#free-endpoint-limits). Partner models require early access and available credits.

## Choose a class

| Class    | Best for                                                                                                                |
| -------- | ----------------------------------------------------------------------------------------------------------------------- |
| Fast     | Applications that need sub-50 ms server-side time-to-first-audio (TTFA) for TTS or time-to-final-segment (TTFS) for STT |
| Standard | Extremely low prices when higher server-side latency is acceptable                                                      |

## Text to Speech

| Class    | Access  | Model ID              | Price per 1M input characters |
| -------- | ------- | --------------------- | ----------------------------- |
| Standard | Free    | `qwen3-tts:free`      | Free                          |
| Fast     | Free    | `qwen3-tts-fast:free` | Free                          |
| Standard | Partner | `qwen3-tts`           | \$5                           |
| Fast     | Partner | `qwen3-tts-fast`      | \$10                          |

Set `model` in the [speech generation request](/generate-speech) body.

## Speech to Text

| Class    | Access  | Model ID              | Price per input audio hour |
| -------- | ------- | --------------------- | -------------------------- |
| Standard | Free    | `qwen3-asr:free`      | Free                       |
| Fast     | Free    | `qwen3-asr-fast:free` | Free                       |
| Standard | Partner | `qwen3-asr`           | \$0.06                     |
| Fast     | Partner | `qwen3-asr-fast`      | \$0.12                     |

Set `session.model` in the initial `session.configure` when [configuring a session](/transcribe-audio#connect-and-configure).

## Partner access

Partner endpoints provide high concurrency through early access during public alpha. If you are interested in early access, contact [founders@narilabs.com](mailto:founders@narilabs.com). We are working to make these endpoints generally available after public alpha.