# Grok Code Fast API Pricing

As of October 10, 2026, Grok Code Fast costs $1.00 per 1M input tokens and $2.00 per 1M output tokens on xAI, with cache reads at $0.20 per 1M tokens. It has a 256,000-token context window and returns up to 256,000 tokens per response.

- Page: https://models.litellm.ai/models/grok-code-fast
- Lab: xAI
- LiteLLM model name: `xai/grok-code-fast`
- Context window: 256,000 tokens
- Max output: 256,000 tokens
- Added to LiteLLM: September 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 |
|---|---|---|---|---|---|---|---|
| xAI | `xai/grok-code-fast` | $1.00 | $2.00 | $0.20 | – | – | 256K |

## Cost examples

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

- xAI: $3.00

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

- xAI: $10.40

## Features

Supported: Function calling, Structured output, Image input, Reasoning, Prompt caching.

## Use it with LiteLLM

```python
from litellm import completion

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

## FAQ

### How much does Grok Code Fast cost?

Grok Code Fast costs $1.00 per 1M input tokens and $2.00 per 1M output tokens on xAI, with cache reads at $0.20 per 1M tokens. Above 200K input tokens, input costs $2.00 and output costs $4.00 per 1M tokens.

### What is the context window of Grok Code Fast?

Grok Code Fast has a 256,000-token context window and returns up to 256,000 tokens per response.

### Which providers offer Grok Code Fast?

Grok Code Fast is available from xAI through LiteLLM, using the model name xai/grok-code-fast.

### How do I call Grok Code Fast with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="xai/grok-code-fast", 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 Grok Code Fast support?

Grok Code Fast supports function calling, structured output, image input, reasoning and prompt caching.

### When did LiteLLM add Grok Code Fast?

Grok Code Fast was added to LiteLLM's model price file in September 2025.

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