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Grok 4

By xAI
Model family: Grok
Grok 4, released by xAI on July 9, 2025, marks a major upgrade in the Grok model series. It features native integration with tools and live web search, enabling more dynamic and up-to-date responses. The model comes in two main variants: a standard general-purpose version and a high-performance “Grok 4 Heavy” tier. These enhancements—including advanced reasoning, coding support, and multimodal input capabilities—position Grok 4 as one of the most capable AI models currently available.
Multimodal Gen 3
Released: July 9, 2025

Overview

reasoning and coding capabilities, real-time search integration, and is available in both generalist and “Heavy” tier versions for enhanced performance.

About xAI

xAI is an artificial intelligence startup founded by Elon Musk, aiming to understand the universe.

Industry: Artificial Intelligence
Company Size: 1200
Location: Palo Alto, California, US
Website: x.ai
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Benchmark scores

How Grok 4 ranks on tracked AI benchmarks. Click any benchmark to see its full leaderboard.

ARC-AGI-2
Reasoning
15.9%
79.0%
91.7%
37.5points
GPQA Diamond
Knowledge
87.5%
25.4%
Compare across all benchmarks →

Tools using Grok 4

Last updated: April 6, 2026
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