# Grok 4 Fast Non Reasoning API Pricing

As of October 10, 2026, Grok 4 Fast Non Reasoning costs $0.20 per 1M input tokens and $0.50 per 1M output tokens on Azure AI Foundry.

- Page: https://models.litellm.ai/models/grok-4-fast-non-reasoning
- Lab: xAI
- LiteLLM model name: `azure_ai/grok-4-fast-non-reasoning`
- Added to LiteLLM: September 2025
- Deprecation date: May 1, 2026
- 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 AI Foundry | `azure_ai/grok-4-fast-non-reasoning` | $0.20 | $0.50 | – | – | – | – |

## Cost examples

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

- Azure AI Foundry: $0.65

## Use it with LiteLLM

```python
from litellm import completion

response = completion(
    model="azure_ai/grok-4-fast-non-reasoning",
    messages=[{"role": "user", "content": "Hello!"}],
)
```

## FAQ

### How much does Grok 4 Fast Non Reasoning cost?

Grok 4 Fast Non Reasoning costs $0.20 per 1M input tokens and $0.50 per 1M output tokens on Azure AI Foundry.

### Which providers offer Grok 4 Fast Non Reasoning?

Grok 4 Fast Non Reasoning is available from Azure AI Foundry through LiteLLM, using the model name azure_ai/grok-4-fast-non-reasoning.

### How do I call Grok 4 Fast Non Reasoning with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="azure_ai/grok-4-fast-non-reasoning", 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.

### When did LiteLLM add Grok 4 Fast Non Reasoning?

Grok 4 Fast Non Reasoning was added to LiteLLM's model price file in September 2025.

### Is Grok 4 Fast Non Reasoning being deprecated?

Azure AI Foundry deprecated azure_ai/grok-4-fast-non-reasoning on May 1, 2026.

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