xAI
xAI
Language model · United States ·Jul 2025

Grok 4 Heavy

Language Proprietary

About Grok 4 Heavy

Grok 4 Heavy is an AI model developed by xAI, in the language category, released in 2025, made available as a proprietary (API-only) model.

On this page you'll find Grok 4 Heavy's full specifications. Review provider pricing and benchmark scores below, or compare Grok 4 Heavy head-to-head with other language models.

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Frequently asked questions

What is Grok 4 Heavy? ▶

Grok 4 Heavy is an AI model developed by xAI, in the language category, released in 2025. It is tracked on GenAIList with its specifications, benchmark scores and provider pricing.

Who created Grok 4 Heavy? ▶

Grok 4 Heavy was developed by xAI and released in 2025.

Is Grok 4 Heavy open source or proprietary? ▶

Grok 4 Heavy is a proprietary model. It is accessed through an API rather than by downloading the weights.

How much does Grok 4 Heavy cost? ▶

Pricing for Grok 4 Heavy depends on the provider. See the providers table on this page for the latest API rates.

How does Grok 4 Heavy perform on benchmarks? ▶

Benchmark scores for Grok 4 Heavy are listed on this page as they are published. You can compare it head-to-head with other models on the GenAIList compare tool.

🤔 What is Grok 4 Heavy? The AI 'Study Group' Method Explained
Grok 4 vs Grok 4 Heavy — Why Heavy Is the Ultimate AI Upgrade! 💥 #contentcreator

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