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xAI

https://docs.x.ai/docs

tip

We support ALL xAI models, just set model=xai/<any-model-on-xai> as a prefix when sending litellm requests

API Key​

# env variable
os.environ['XAI_API_KEY']

Sample Usage​

LiteLLM python sdk usage - Non-streaming
from litellm import completion
import os

os.environ['XAI_API_KEY'] = ""
response = completion(
    model="xai/grok-3-mini-beta",
    messages=[
        {
            "role": "user",
            "content": "What's the weather like in Boston today in Fahrenheit?",
        }
    ],
    max_tokens=10,
    response_format={ "type": "json_object" },
    seed=123,
    stop=["\n\n"],
    temperature=0.2,
    top_p=0.9,
    tool_choice="auto",
    tools=[],
    user="user",
)
print(response)

Sample Usage - Streaming​

LiteLLM python sdk usage - Streaming
from litellm import completion
import os

os.environ['XAI_API_KEY'] = ""
response = completion(
    model="xai/grok-3-mini-beta",
    messages=[
        {
            "role": "user",
            "content": "What's the weather like in Boston today in Fahrenheit?",
        }
    ],
    stream=True,
    max_tokens=10,
    response_format={ "type": "json_object" },
    seed=123,
    stop=["\n\n"],
    temperature=0.2,
    top_p=0.9,
    tool_choice="auto",
    tools=[],
    user="user",
)

for chunk in response:
    print(chunk)

Sample Usage - Vision​

LiteLLM python sdk usage - Vision
import os 
from litellm import completion

os.environ["XAI_API_KEY"] = "your-api-key"

response = completion(
    model="xai/grok-2-vision-latest",
    messages=[
        {
            "role": "user",
            "content": [
                {
                    "type": "image_url",
                    "image_url": {
                        "url": "https://science.nasa.gov/wp-content/uploads/2023/09/web-first-images-release.png",
                        "detail": "high",
                    },
                },
                {
                    "type": "text",
                    "text": "What's in this image?",
                },
            ],
        },
    ],
)

Usage with LiteLLM Proxy Server​

Here's how to call a XAI model with the LiteLLM Proxy Server

  1. Modify the config.yaml 

    model_list:
      - model_name: my-model
        litellm_params:
          model: xai/<your-model-name>  # add xai/ prefix to route as XAI provider
          api_key: api-key                 # api key to send your model

  1. Start the proxy 

    $ litellm --config /path/to/config.yaml

  2. Send Request to LiteLLM Proxy Server

    import openai
    client = openai.OpenAI(
        api_key="sk-1234",             # pass litellm proxy key, if you're using virtual keys
        base_url="http://0.0.0.0:4000" # litellm-proxy-base url
    )

    response = client.chat.completions.create(
        model="my-model",
        messages = [
            {
                "role": "user",
                "content": "what llm are you"
            }
        ],
    )

    print(response)

Reasoning Usage​

LiteLLM supports reasoning usage for xAI models.

reasoning with xai/grok-3-mini-beta
import litellm
response = litellm.completion(
    model="xai/grok-3-mini-beta",
    messages=[{"role": "user", "content": "What is 101*3?"}],
    reasoning_effort="low",
)

print("Reasoning Content:")
print(response.choices[0].message.reasoning_content)

print("\nFinal Response:")
print(completion.choices[0].message.content)

print("\nNumber of completion tokens (input):")
print(completion.usage.completion_tokens)

print("\nNumber of reasoning tokens (input):")
print(completion.usage.completion_tokens_details.reasoning_tokens)

Example Response:

Reasoning Content:
Let me calculate 101 multiplied by 3:
101 * 3 = 303.
I can double-check that: 100 * 3 is 300, and 1 * 3 is 3, so 300 + 3 = 303. Yes, that's correct.

Final Response:
The result of 101 multiplied by 3 is 303.

Number of completion tokens (input):
14

Number of reasoning tokens (input):
310