# o1 Mini API Pricing

As of October 10, 2026, o1 Mini costs $1.10 per 1M input tokens and $4.40 per 1M output tokens from Azure OpenAI, the lowest of 2 providers, with cache reads at $0.55 per 1M tokens. It has a 128,000-token context window and returns up to 65,536 tokens per response.

- Page: https://models.litellm.ai/models/o1-mini
- Lab: OpenAI
- LiteLLM model name: `azure/o1-mini`
- Context window: 128,000 tokens
- Max output: 65,536 tokens
- Added to LiteLLM: September 2024
- 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 |
|---|---|---|---|---|---|---|---|
| Azure OpenAI | `azure/o1-mini` | $1.10 | $4.40 | $0.55 | – | – | 128K |
| Azure OpenAI (snapshot 2024-09-12) | `azure/o1-mini-2024-09-12` | $1.10 | $4.40 | $0.55 | – | – | 128K |
| Replicate | `replicate/openai/o1-mini` | $1.10 | $4.40 | – | – | – | – |
| Azure OpenAI (eu) | `azure/eu/o1-mini` | $1.21 | $4.84 | $0.605 | – | – | – |
| Azure OpenAI (eu, snapshot 2024-09-12) | `azure/eu/o1-mini-2024-09-12` | $1.21 | $4.84 | $0.605 | – | – | 128K |
| Azure OpenAI (us) | `azure/us/o1-mini` | $1.21 | $4.84 | $0.605 | – | – | – |
| Azure OpenAI (us, snapshot 2024-09-12) | `azure/us/o1-mini-2024-09-12` | $1.21 | $4.84 | $0.605 | – | – | 128K |

## Cost examples

1,000 requests with 2,000 input and 500 output tokens each:

- Azure OpenAI: $4.40
- Replicate: $4.40
- Azure OpenAI batch: $2.20

100 long-document requests with 100,000 input and 2,000 output tokens each:

- Azure OpenAI: $11.88
- Replicate: $11.88

## Features

Supported: Function calling, Parallel tool calls, Reasoning, Prompt caching.
Not supported: Image input.

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="azure/o1-mini",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## FAQ

### How much does o1 Mini cost?

o1 Mini costs $1.10 per 1M input tokens and $4.40 per 1M output tokens from Azure OpenAI, the lowest of 2 providers, with cache reads at $0.55 per 1M tokens. Batch requests cost $0.55 per 1M input tokens and $2.20 per 1M output tokens.

### What is the context window of o1 Mini?

o1 Mini has a 128,000-token context window and returns up to 65,536 tokens per response.

### Which providers offer o1 Mini?

o1 Mini is available from 2 providers through LiteLLM: Azure OpenAI and Replicate.

### How do I call o1 Mini with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="azure/o1-mini", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/chat/completions from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

### What features does o1 Mini support?

o1 Mini supports function calling, parallel tool calls, reasoning and prompt caching. It does not support image input.

### When did LiteLLM add o1 Mini?

o1 Mini was added to LiteLLM's model price file in September 2024.

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