Name: Grok 3 Beta Mini API
Brand: xAI

Overview

Grok 3 Beta Mini Description

Overview

Grok 3 Beta Mini balances performance and efficiency, providing faster outputs suitable for real-time applications. It is a cost-efficient alternative to Grok 3 Beta, optimized for reasoning-heavy tasks that don’t require extensive domain knowledge. It offers transparent reasoning traces and excels in mathematical and quantitative problems.

Key Features

Rapid Response: Optimized for speed, delivering quicker outputs for time-sensitive tasks.
Cost-Effective: Lower operational costs due to reduced computational requirements.
Efficient Reasoning: Maintains strong reasoning abilities with streamlined accuracy checks. Adjustable reasoning effort with parameters like reasoning: { effort: "high" }

Intended Use

Customer Support: Provides swift and relevant responses to user inquiries.
Interactive Applications: Enhances user experience in chatbots and virtual assistants with prompt replies.
Educational Platforms: Delivers quick explanations and answers for e-learning environments.

Technical Details

Architecture

Grok 3 Beta Mini utilizes Transformer-based architectures optimized for reasoning tasks. This model uses a lightweight framework prioritizing speed and cost efficiency.

Training Data

Trained on diverse datasets including legal filings, scientific papers, mathematical benchmarks like AIME2025, and synthetic reasoning corpora.

Data Source and Size

Grok 3 models leverage xAI’s Colossus supercluster with over 200,000 GPUs to process terabytes of data efficiently.

Knowledge Cutoff

February 2025; supports static datasets without live data retrieval capabilities.

Usage

Code Samples

The model is available on the AI/ML API platform as "x-ai/grok-3-beta-mini" .

API Documentation

Detailed API Documentation is available here.

Ethical Guidelines

Grok's development follows ethical considerations regarding data usage and model deployment. xAI emphasizes responsible AI use while addressing potential misuse concerns related to its capabilities, particularly in image generation.

Licensing

Grok-3 is available under a commercial license. Non-commercial usage rights may be limited based on specific terms outlined by xAI.

Uptime and performance

Uptime (24h): 100%
Uptime (7d): 100%
Availability (24h): 50.0%
Error rate (24h): 50.0%

Measured on the AI/ML API gateway across live traffic. Figures are medians unless stated. Last updated 2026-10-12.

Use cases

Real-time customer support and chatbot applications
Rapid prototyping for coding and debugging
Data extraction and analysis automation
STEM education and logical problem solving
Enterprise-scale applications requiring high throughput and low latency

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How to use Grok 3 Beta Mini API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to x-ai/grok-3-mini-beta.

import requests

r = requests.post(
    "https://api.aimlapi.com/v1/chat/completions",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "x-ai/grok-3-mini-beta",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ]
    },
)
print(r.json())

const r = await fetch("https://api.aimlapi.com/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "x-ai/grok-3-mini-beta",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }),
});
console.log(await r.json());

curl -X POST https://api.aimlapi.com/v1/chat/completions \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"x-ai/grok-3-mini-beta","messages":[{"role":"user","content":"Hello!"}]}'

OpenAI-compatible — swap the base URL and it works with your existing SDK.