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.
- Input
- $1.00 / 1M tokens
- Output
- $2.00 / 1M tokens
- Cache read
- $0.20 / 1M tokens
- Context window
- 256,000 tokens
- Max output
- 256,000 tokens
- Providers
- 1
- Added to LiteLLM
- September 2025
Grok Code Fast pricing by provider
1 listing across 1 provider. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.
| Provider | Model name in LiteLLM | Input | Output | Cache read | Context |
|---|---|---|---|---|---|
| xAI | xai/grok-code-fast | $1.00 | $2.00 | $0.20 | 256K |
Other Grok Code Fast prices on xAI
| Input above 200K tokens | $2.00 per 1M tokens |
| Output above 200K tokens | $4.00 per 1M tokens |
| Cache read above 200K tokens | $0.40 per 1M tokens |
What Grok Code Fast costs in practice
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 |
Grok Code Fast features
- Function calling
- Structured output
- Image input
- Reasoning
- Prompt caching
Use Grok Code Fast with LiteLLM
Call Grok Code Fast through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/chat/completions. LiteLLM tracks the cost of every request at these prices.
from litellm import completion
response = completion(
model="xai/grok-code-fast",
messages=[{"role": "user", "content": "Hello!"}],
)model_list:
- model_name: grok-code-fast
litellm_params:
model: xai/grok-code-fast
api_key: os.environ/XAI_API_KEYcurl http://0.0.0.0:4000/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer sk-1234" \
-d '{
"model": "grok-code-fast",
"messages": [{"role": "user", "content": "Hello!"}]
}'Grok Code Fast 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.
Sources
Prices come from LiteLLM's open-source model_prices_and_context_window.json, which LiteLLM uses to calculate the cost of every request. Provider pricing pages:
LiteLLM docs: xAI.
Provider pages: xAI.
