Grok 3 Beta is xAI’s flagship reasoning model, designed for enterprise-level tasks requiring advanced problem-solving capabilities. It excels in complex reasoning tasks, including mathematics, coding, and domain-specific analytics.
Grok 3 Beta utilizes Transformer-based architectures optimized for reasoning tasks. This model employs large-scale reinforcement learning for advanced reasoning.
Trained on diverse datasets including legal filings, scientific papers, mathematical benchmarks like AIME2025, and synthetic reasoning corpora.
Grok 3 models leverage xAI’s Colossus supercluster with over 200,000 GPUs to process terabytes of data efficiently.
February 2025; supports static datasets without live data retrieval capabilities.
The model is available on the AI/ML API platform as "x-ai/grok-3-beta" .
Detailed API Documentation is available here.
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.
Grok-3 is available under a commercial license. Non-commercial usage rights may be limited based on specific terms outlined by xAI.
Measured on the AI/ML API gateway across live traffic. Figures are medians unless stated. Last updated 2026-10-12.
Grok 3 Beta is documented as suited to enterprise use cases such as data extraction, coding, and text summarization.
It is also documented for research and analysis, including multi-source research on complex topics and synthesis of academic papers, news articles, and real-time X discussions into structured reports.
Another documented use case is mathematics and science education, including working through mathematical proofs, scientific problem-solving, and STEM educational assistance.
It is also documented for software development, including code generation, debugging, code review, and explaining complex systems.
import requests r = requests.post( "https://api.aimlapi.com/v1/chat/completions", headers={"Authorization": "Bearer " + AIMLAPI_KEY}, json={ "model": "x-ai/grok-3-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-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-beta","messages":[{"role":"user","content":"Hello!"}]}'
OpenAI-compatible — swap the base URL and it works with your existing SDK.
| Type | Price |
|---|---|
| Input | |
| Output | |
| Cached input |
| Benchmark | Score | What it measures | Source | Retrieved |
|---|---|---|---|---|
| MMMU | 76.0% | College-level multimodal understanding + reasoning | Source | July 12, 2026 |
| AIME 2025 | 77.3% | Competition mathematics (AIME), 2025 | Source | July 12, 2026 |
| GPQA Diamond | 80.2% | Google-proof graduate science questions (hardest subset) | Source | July 12, 2026 |
| Intelligence | 10.4 | Composite score across standardised reasoning, knowledge and problem-solving evaluations, measured independently by Artificial Analysis | Source | September 12, 2026 |
| Model | Input | Output | Context | Best for |
|---|---|---|---|---|
Grok 3 Beta This page | Coding + agents | |||
| Reasoning + agents | ||||
| Balanced coding + agents | ||||
| Long-context, multimodal & agentic workflows | ||||
| Reasoning + agents |
Grok 3 Beta has a 131,000 tokens context window and can return up to 130,000 tokens.
Grok 3 Beta takes text as input and returns text.
Use x-ai/grok-3-beta as the model id. Requests go to https://api.aimlapi.com/v1/chat/completions.
Grok 3 Beta is priced at input $1.625 / 1M tokens, output $3.25 / 1M tokens, cached input $0.26 / 1M tokens.
Yes, Grok 3 Beta can stream responses as they are generated.
Grok 3 Beta was built by xAI .
Grok 3 Beta is available via the API endpoint https://api.aimlapi.com/v1/chat/completions.
It supports file input, parallel tool calls, streaming, structured output, and tool use.
Yes, it supports function calling, tool use, and parallel tool calls.
