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xAI: Grok 4 Fast

xAI: Grok 4 Fast

Unmatched Scalable Real-Time LLM Experience

Context: 2 000 000 tokens
Output: up to 2 000 000 tokens
Modality:
Text
Image
Get API Key
FrameFrame

The Ultimate Scalable API Solution for Real-Time LLM Applications

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Grok 4 Fast is a mid-tier, high-performance language model designed to connect complex language skills with real-world uses. Created by [Creator Name], this large language model (LLM) is aimed at developers, startups, and teams who want to build dynamic, scalable AI solutions. Its mid-tier position makes it a great choice for production use, particularly in generative AI systems and real-time applications that require quick response times while maintaining strong capabilities.

Key Features of Grok 4 Fast


Low Latency: Grok 4 Fast excels with impressive latency metrics that support real-time applications. Developers can expect smooth interactions and swift responses, crucial for customer-facing applications like chatbots.

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Extensive Context and Alignment: This model features a robust context window that facilitates detailed conversations and content generation. With advanced alignment capabilities, Grok 4 Fast ensures outputs are both relevant and safe, enhancing user experience.

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Multilingual Support: Designed to support multiple languages, Grok 4 Fast breaks language barriers, providing inclusive and accessible solutions for global markets.

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Superior Reasoning and Coding Skills: With enhanced reasoning abilities and coding proficiency, Grok 4 Fast serves as an optimal choice for applications requiring logical deductions or code generation, making it an ideal solution for developers.

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Real-Time Readiness and Deployment Flexibility: Grok 4 Fast is engineered for deployment flexibility, whether on cloud platforms or within local systems, allowing developers to integrate it seamlessly into existing infrastructures.

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Use Cases for Grok 4 Fast


Chatbots for SaaS and Customer Support: Grok 4 Fast serves as a backbone for intelligent chatbots that revolutionize user interaction in SaaS platforms and customer service departments, ensuring efficient and intuitive communication.

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Code Generation in IDEs and AI Dev Tools: Developers can leverage Grok 4 Fast’s coding skills to automate code-writing tasks in integrated development environments and AI development tools, enhancing productivity and reducing time-to-market.

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Document Summarization for Legal Tech and Research: With its robust text-processing capabilities, Grok 4 Fast is perfect for summarizing large volumes of documents quickly, whether for legal analysis or academic research.

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Workflow Automation in Internal Ops and CRM: By using Grok 4 Fast, businesses can automate workflows in customer relationship management systems and internal operations, streamlining processes and improving efficiency.

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Knowledge Base Search in Enterprise Data and Onboarding: Providing intelligent search capabilities, Grok 4 Fast enhances enterprise knowledge base management and onboarding processes, making information retrieval fast and effortless.

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Why Use Grok 4 Fast via AnyAPI.ai
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AnyAPI.ai enhances Grok 4 Fast’s value through a unified API that offers access to multiple models, simplifying the integration process. With one-click onboarding and no vendor lock-in, developers enjoy flexibility and ease of use. The platform also provides usage-based billing, developer tools, and production-grade infrastructure, distinguishing itself from alternatives like OpenRouter and AIMLAPI with its superior provisioning and analytics support.

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Start Using Grok 4 Fast via API Today

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For startups, developers, and teams wanting to use scalable and efficient AI technology, Grok 4 Fast provides an excellent mix of performance and flexibility. You can integrate Grok 4 Fast through AnyAPI.ai and begin creating innovative applications today. Sign up, obtain your API key, and get started in minutes.

Comparison with other LLMs

Model
Context Window
Multimodal
Latency
Strengths
Model
xAI: Grok 4 Fast
Context Window
2mil
Multimodal
Yes
Latency
Fast
Strengths
Massive context; cost‑efficient; but still emerging latency optimization
Get access
Model
Google: Gemini 2.5 Pro
Context Window
1mil
Multimodal
Yes
Latency
Fast
Strengths
Image+text input, large context, low latency
Get access
Model
Anthropic: Claude 3.5 Sonnet
Context Window
200k
Multimodal
Yes
Latency
Medium
Strengths
Large documents, multimodal reasoning
Get access
Model
OpenAI: GPT-4 Turbo
Context Window
128k
Multimodal
Yes
Latency
Very High
Strengths
Production-scale AI systems
Get access

Sample code for 

xAI: Grok 4 Fast

Python
JavaScript
Curl
import requests

url = "https://api.anyapi.ai/v1/chat/completions"

payload = {
    "model": "grok-4-fast",
    "messages": [
        {
            "role": "user",
            "content": [
                {
                    "type": "text",
                    "text": "What is in this image?"
                },
                {
                    "type": "image_url",
                    "image_url": { "url": "https://your-image.jpg" }
                }
            ]
        }
    ],
    "max_tokens": 300,
    "stream": False,
    "tool_choice": "auto",
    "logprobs": False
}
headers = {
    "Authorization": "Bearer your_api_key",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
import requests url = "https://api.anyapi.ai/v1/chat/completions" payload = { "model": "grok-4-fast", "messages": [ { "role": "user", "content": [ { "type": "text", "text": "What is in this image?" }, { "type": "image_url", "image_url": { "url": "https://your-image.jpg" } } ] } ], "max_tokens": 300, "stream": False, "tool_choice": "auto", "logprobs": False } headers = { "Authorization": "Bearer your_api_key", "Content-Type": "application/json" } response = requests.post(url, json=payload, headers=headers) print(response.json())
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const url = 'https://api.anyapi.ai/v1/chat/completions';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer your_api_key', 'Content-Type': 'application/json'},
  body: '{"model":"grok-4-fast","messages":[{"role":"user","content":[{"type":"text","text":"What is in this image?"},{"type":"image_url","image_url":{"url":"https://your-image.jpg"}}]}],"max_tokens":300,"stream":false,"tool_choice":"auto","logprobs":false}'
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
const url = 'https://api.anyapi.ai/v1/chat/completions'; const options = { method: 'POST', headers: {Authorization: 'Bearer your_api_key', 'Content-Type': 'application/json'}, body: '{"model":"grok-4-fast","messages":[{"role":"user","content":[{"type":"text","text":"What is in this image?"},{"type":"image_url","image_url":{"url":"https://your-image.jpg"}}]}],"max_tokens":300,"stream":false,"tool_choice":"auto","logprobs":false}' }; try { const response = await fetch(url, options); const data = await response.json(); console.log(data); } catch (error) { console.error(error); }
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Code is copied
curl --request POST \
  --url https://api.anyapi.ai/v1/chat/completions \
  --header 'Authorization: Bearer your_api_key' \
  --header 'Content-Type: application/json' \
  --data '{
  "model": "grok-4-fast",
  "messages": [
    {
      "role": "user",
      "content": [
        {
          "type": "text",
          "text": "What is in this image?"
        },
        {
          "type": "image_url",
          "image_url": {
            "url": "https://your-image.jpg"
          }
        }
      ]
    }
  ],
  "max_tokens": 300,
  "stream": false,
  "tool_choice": "auto",
  "logprobs": false
}'
curl --request POST \ --url https://api.anyapi.ai/v1/chat/completions \ --header 'Authorization: Bearer your_api_key' \ --header 'Content-Type: application/json' \ --data '{ "model": "grok-4-fast", "messages": [ { "role": "user", "content": [ { "type": "text", "text": "What is in this image?" }, { "type": "image_url", "image_url": { "url": "https://your-image.jpg" } } ] } ], "max_tokens": 300, "stream": false, "tool_choice": "auto", "logprobs": false }'
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Code examples coming soon...

FAQs

Answers to common questions about integrating and using this AI model via AnyAPI.ai

What is Grok 4 Fast used for?

Grok 4 Fast is used for a variety of applications, including chatbots, code generation, document summarization, workflow automation, and knowledge base search.

How is Grok 4 Fast different from other models?

Grok 4 Fast offers lower latency, wider context, and better cost-effectiveness compared to models like Claude Opus or GPT-4 Turbo.

Can I access Grok 4 Fast without a xAI account?

Yes, Grok 4 Fast can be accessed via AnyAPI.ai without needing a dedicated xAI account.

Is Grok 4 Fast good for coding?

Absolutely. Grok 4 Fast is equipped with sophisticated coding capabilities suitable for generating code in various programming environments.

Does Grok 4 Fast support multiple languages?

Yes, Grok 4 Fast supports more than 15 languages, making it versatile for international applications.

Still have questions?

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