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What is Grok 4 Heavy?

Grok 4 Heavy is xAI’s most powerful AI model to date, utilizing a sophisticated multi-agent system architecture to excel in advanced reasoning and multimodal intelligence. Powered by the Colossus supercomputer in Memphis, this model has achieved an impressive 50% score on the difficult HLE benchmark, significantly outperforming many rivals in AI research. Grok 4 Heavy supports various input types including text and images, with video input capabilities expected soon to further enhance its contextual and cultural understanding. This premium-tier AI model is tailored for power users such as developers, technical researchers, and enthusiasts who require unparalleled AI performance for demanding applications. Access to Grok 4 Heavy is offered through the “SuperGrok Heavy” subscription plan priced at $300 per month, which also provides early previews of upcoming features like video generation. xAI has made significant improvements in moderation and content filtering to prevent biased or extremist outputs previously associated with earlier versions. Founded in late 2023, xAI rapidly built a comprehensive AI infrastructure focused on innovation and responsibility. Grok 4 Heavy strengthens xAI’s position as a key player competing against giants like OpenAI, Google DeepMind, and Anthropic. It embodies the vision of an AI system capable of self-improvement and pioneering new scientific breakthroughs. Grok 4 Heavy marks a new era of AI sophistication and practical capability for advanced users.

What is GPT-5.1 Thinking?

GPT-5.1 Thinking is an advanced reasoning model within the GPT-5.1 series, designed to effectively manage "thinking time" based on the difficulty of prompts, thus facilitating faster responses to simple questions while allocating more resources to complex challenges. When compared to its predecessor, this model boasts nearly double the efficiency for straightforward tasks and requires twice the time for more intricate inquiries. It prioritizes the clarity of its answers, steering clear of jargon and ambiguous terms, which significantly improves the understanding of complex analytical tasks. The model skillfully adjusts its depth of reasoning, striking a balance between speed and thoroughness, particularly when it comes to technical topics or inquiries requiring multiple steps. By combining powerful reasoning capabilities with improved clarity, GPT-5.1 Thinking stands out as an essential tool for managing complex projects, such as detailed analyses, coding, research, or technical conversations, while also reducing wait times for simpler requests. This enhancement not only aids users in need of quick solutions but also effectively supports those engaged in higher-level cognitive tasks, making it a versatile asset in various contexts of use. Overall, GPT-5.1 Thinking represents a significant leap forward in processing efficiency and user engagement.

Media

Media

Integrations Supported

C++
CSS
Go
HTML
Java
JavaScript
Kotlin
PHP
Python
Rust
SQL
TypeScript
Scala
Visual Basic

Integrations Supported

C++
CSS
Go
HTML
Java
JavaScript
Kotlin
PHP
Python
Rust
SQL
TypeScript
Azure OpenAI Service
Codex Security
Doraverse
GitHub
Kimi K2 Thinking
Verdent

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided

Pricing Information

Pricing not provided

Supported Platforms

SaaS
Android
iPhone
iPad

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

SpaceXSI

Date Founded

2023

Company Location

United States

Company Website

grok.com

Company Facts

Organization Name

OpenAI

Date Founded

2015

Company Location

United States

Company Website

openai.com/index/gpt-5-1/

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

AI Reasoning Models

Not specified

Foundation Models

Not specified

Large Language Models

Not specified

Multimodal Models

Not specified

Categories and Features

AI Coding Models

Not specified

AI Models

Not specified

AI Reasoning Models

Not specified

Foundation Models

Not specified

Large Language Models

Not specified

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