Grok 4 1 Fast Reasoning
xai/grok-4-1-fast-reasoningChat
Context Window
2M
tokens
Max Output
2M
tokens
Input Price
$0.20
/1M tokens
Output Price
$0.50
/1M tokens
Overview
Grok 4 1 Fast Reasoning is a chat model by Xai. It supports a 2M token context window. Supports function calling, vision, reasoning, web search.
Features & Capabilities
| Mode | chat |
| Context Window | 2M tokens |
| Max Output | 2M tokens |
| Function Calling | Supported |
| Vision | Supported |
| Reasoning | Supported |
| Web Search | Supported |
| Url Context | - |
API Usage
from openai import OpenAI
client = OpenAI(
base_url="https://api.haimaker.ai/v1",
api_key="YOUR_API_KEY",
)
response = client.chat.completions.create(
model="xai/grok-4-1-fast-reasoning",
messages=[
{"role": "user", "content": "Hello, how are you?"}
],
)
print(response.choices[0].message.content)Use Grok 4 1 Fast Reasoning with the haimaker API
OpenAI-compatible endpoint. Start building in minutes.