# GPT-4o Mini TTS API Pricing

As of October 10, 2026, GPT-4o Mini TTS costs $0.00025 per second on OpenAI.

- Page: https://models.litellm.ai/models/gpt-4o-mini-tts
- Lab: OpenAI
- LiteLLM model name: `gpt-4o-mini-tts`
- Added to LiteLLM: May 2025
- Prices updated: October 10, 2026

## Pricing by provider

Token prices in USD per 1M tokens.

| Provider | Model name | Input | Output | Cache read | Per image | Per second | Context |
|---|---|---|---|---|---|---|---|
| OpenAI | `gpt-4o-mini-tts` | $0.60 | $10.00 | – | – | $0.00025 | – |
| OpenAI (snapshot 2025-03-20) | `gpt-4o-mini-tts-2025-03-20` | $0.60 | $10.00 | – | – | $0.00025 | – |
| OpenAI (snapshot 2025-12-15) | `gpt-4o-mini-tts-2025-12-15` | $0.60 | $10.00 | – | – | $0.00025 | – |
| Azure OpenAI | `azure/gpt-4o-mini-tts` | $0.60 | $10.00 | – | – | $0.00025 | – |

## Use it with LiteLLM

```python
from litellm import speech

response = speech(
    model="gpt-4o-mini-tts",
    input="Hello from LiteLLM",
    voice="alloy",
)
```

## FAQ

### How much does GPT-4o Mini TTS cost?

GPT-4o Mini TTS costs $0.00025 per second on OpenAI.

### Which providers offer GPT-4o Mini TTS?

GPT-4o Mini TTS is available from 2 providers through LiteLLM: OpenAI and Azure OpenAI.

### How do I call GPT-4o Mini TTS with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="gpt-4o-mini-tts", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/audio/speech from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

### When did LiteLLM add GPT-4o Mini TTS?

GPT-4o Mini TTS was added to LiteLLM's model price file in May 2025.

Source: LiteLLM model price file, https://github.com/BerriAI/litellm/blob/main/model_prices_and_context_window.json