# STT Rt V4 API Pricing

As of November 15, 2026, STT Rt V4 costs $0.002 per minute of audio on Soniox.

- Page: https://models.litellm.ai/models/stt-rt-v4
- LiteLLM model name: `soniox/stt-rt-v4`
- Added to LiteLLM: October 30, 2026
- Deprecation date: June 30, 2026
- Status: retired. Prices below are the last listed and kept for reference.
- Prices updated: November 13, 2026

## Pricing by provider

Token prices in USD per 1M tokens.

| Provider | Model name | Input | Output | Cache read | Per image | Per second | Context |
|---|---|---|---|---|---|---|---|
| Soniox | `soniox/stt-rt-v4` | – | – | – | – | – | – |

## Cost examples

Transcribing 1,000 minutes of audio:

- Soniox: $2.00

## Features

Supported: Audio input.

## Use it with LiteLLM

```python
from litellm import transcription

response = transcription(
    model="soniox/stt-rt-v4",
    file=open("audio.mp3", "rb"),
)
```

## FAQ

### How much does STT Rt V4 cost?

STT Rt V4 costs $0.002 per minute of audio on Soniox.

### Which providers offer STT Rt V4?

STT Rt V4 is available from Soniox through LiteLLM, using the model name soniox/stt-rt-v4.

### How do I call STT Rt V4 with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="soniox/stt-rt-v4", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/audio/transcriptions from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

### What features does STT Rt V4 support?

STT Rt V4 supports audio input.

### When did LiteLLM add STT Rt V4?

STT Rt V4 was added to LiteLLM's model price file on October 30, 2026.

### Is STT Rt V4 being deprecated?

Soniox deprecated soniox/stt-rt-v4 on June 30, 2026.

Source: LiteLLM model price file, https://github.com/BerriAI/litellm/blob/main/model_prices_and_context_window.json. Maintainers update it from each provider's published pricing, and this page is usually rebuilt within 20 minutes of every change.