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About

Grok 4 Heavy is the most powerful AI model offered by xAI, designed as a multi-agent system to deliver cutting-edge reasoning and intelligence. Built on the Colossus supercomputer, it achieves a 50% score on the challenging HLE benchmark, outperforming many competitors. This advanced model supports multimodal inputs including text and images, with plans to add video capabilities. Grok 4 Heavy targets power users such as developers, researchers, and technical enthusiasts who require top-tier AI performance. Access is provided through the premium “SuperGrok Heavy” subscription priced at $300 per month. xAI has enhanced moderation and removed problematic system prompts to ensure responsible and ethical AI use.

About

Grok 4.1 Fast is the newest xAI model designed to deliver advanced tool-calling capabilities with a massive 2-million-token context window. It excels at complex real-world tasks such as customer support, finance, troubleshooting, and dynamic agent workflows. The model pairs seamlessly with the new Agent Tools API, which enables real-time web search, X search, file retrieval, and secure code execution. This combination gives developers the power to build fully autonomous, production-grade agents that plan, reason, and use tools effectively. Grok 4.1 Fast is trained with long-horizon reinforcement learning, ensuring stable multi-turn accuracy even across extremely long prompts. With its speed, cost-efficiency, and high benchmark scores, it sets a new standard for scalable enterprise-grade AI agents.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

Power users, developers, researchers, and technical enthusiasts seeking a premium, multi-agent AI model with top-tier reasoning, multimodal intelligence, and early access to cutting-edge features

Audience

This content is ideal for developers, enterprises, and technical teams seeking to build advanced AI agents that require real-time data access, long-context reasoning, and reliable tool-calling capabilities

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

No information available.
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

xAI
Founded: 2023
United States
grok.com

Company Information

xAI
Founded: 2023
United States
grok.com

Alternatives

Claude Opus 4

Claude Opus 4

Anthropic

Alternatives

Grok 4

Grok 4

xAI
Grok 3

Grok 3

xAI

Categories

Categories

Integrations

CSS
Clojure
Cursor
Elixir
F#
Go
Grok
Grok Imagine
HTML
JavaScript
Julia
Kotlin
Laravel
R
Ruby
SQL
Scala
SuperGrok
TypeScript
Visual Basic

Integrations

CSS
Clojure
Cursor
Elixir
F#
Go
Grok
Grok Imagine
HTML
JavaScript
Julia
Kotlin
Laravel
R
Ruby
SQL
Scala
SuperGrok
TypeScript
Visual Basic
Claim Grok 4 Heavy and update features and information
Claim Grok 4 Heavy and update features and information
Claim Grok 4.1 Fast and update features and information
Claim Grok 4.1 Fast and update features and information