Grok 4 Heavy

Grok 4 Heavy

SpaceXAI
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+

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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

Step 5 Preview is StepFun’s flagship model for agentic work, designed for real-world tasks across software engineering and professional knowledge work, with particular strength in finance. It natively supports text, image, and video input and provides a 1M-token context window, enabling tasks that require large amounts of information, tool calls, and continuous progress toward a deliverable. The model can analyze long documents, multiple source materials, and conversation history for cross-document question answering and research organization. For programming and software engineering, it works across multiple languages and can support troubleshooting, code changes, verification, and test creation. Its multi-step agent capabilities let applications provide tools for retrieving information, processing documents, conducting deep research, and producing analytical reports. Multimodal understanding combines images, video, and text for chart analysis, screenshot question answering, etc.

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

Developers, engineering teams, and knowledge-work organizations wanting to build multimodal AI agents for coding, research, analysis, and other complex multi-step tasks

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

$0.04 per input
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:

Review this Software

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:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

SpaceXAI
Founded: 2023
United States
grok.com

Company Information

StepFun
Founded: 2023
United States
platform.stepfun.ai/docs/en/guides/models/step-5-preview

Alternatives

Claude Opus 4

Claude Opus 4

Anthropic

Alternatives

No Alternatives
Grok 4

Grok 4

SpaceXAI
Grok 4.20

Grok 4.20

SpaceXAI

Categories

Categories

Integrations

Python
C#
C++
Cherry Studio
ClinePass
F#
Grok Imagine
Hermes Agent
Hugging Face
JavaScript
Novita AI
Odysseus
Ollama
Qwen
Qwen Studio
QwenCloud
QwenWork
R
TypeScript
Visual Basic

Integrations

Python
C#
C++
Cherry Studio
ClinePass
F#
Grok Imagine
Hermes Agent
Hugging Face
JavaScript
Novita AI
Odysseus
Ollama
Qwen
Qwen Studio
QwenCloud
QwenWork
R
TypeScript
Visual Basic
Claim Grok 4 Heavy and update features and information
Claim Grok 4 Heavy and update features and information
Claim Step 5 Preview and update features and information
Claim Step 5 Preview and update features and information