Grok 4.1 Fast Non-Reasoning

Chat Completions

grok-4.1-fast-non-reasoning

xAI|Created Nov 20, 2025|2M context

Chat Completions

Grok 4.1 Fast Non-Reasoning is xAI's high-speed variant optimized for instant responses and straightforward queries, featuring a 2M token context window. Designed for production workflows requiring rapid inference without deep reasoning overhead, it maintains strong tool-calling capabilities and multi-turn consistency while delivering faster response times. Ideal for real-time applications, customer-facing chatbots, and scenarios where speed is critical, Grok 4.1 Fast Non-Reasoning balances performance with cost-effectiveness for efficient, production-ready agent deployments.

Overview Specifications Activity Performance Uptime Examples API Reference

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Pricing-50%

Pay-as-you-go rates for this model. More details can be found here.

Input Tokens (1M)

$0.10

Cached Input Tokens (1M)

$0.02

Output Tokens (1M)

$0.25

Capabilities

Input Modalities

TextImage

Output Modalities

Text

Supported Parameters

Available parameters for API requests

Max Completion TokensResponse FormatTemperatureTool ChoiceToolsTop PWeb Search OptionsParallel Tool Calls

Usage Analytics

Token usage of this model on our platform

Throughput

Time-To-First-Token (TTFT)

Code Example

Example code for using this model through our API with Python (OpenAI SDK) or cURL. Replace placeholders with your API key and model ID.

Basic request example. Ensure API key permissions. For more details, see our documentation.

from openai import OpenAI

client = OpenAI(
    base_url="https://api.naga.ac/v1",
    api_key="YOUR_API_KEY",
)

resp = client.chat.completions.create(
    model="grok-4.1-fast-non-reasoning",
    messages=[
        {"role": "user", "content": "What's 2+2?"}
    ],
    temperature=0.2,
)
print(resp.choices[0].message.content)