xAI Unveils Grok 4, Touting It as "World’s Smartest Artificial Intelligence"

xAI Unveils Grok 4, Touting It as "World’s Smartest Artificial Intelligence"

xAI revealed Grok 4 on July 12, 2025, positioning it as the world’s smartest artificial intelligence. The model outperforms all competitors on the ARC-AGI benchmark, achieving a 15.9% score—nearly double the next highest-performing model—solidifying its status as the most intelligent AI to date.

Another rigorous benchmark, Humanity's Last Exam (HLE), which features over 2,500 problems designed by experts across mathematics, natural sciences, engineering, and humanities (where most models score only single-digit accuracy), also sees Grok 4 and its variant, Grok 4 Heavy, outperforming all other models.

xAI highlights that Grok 4 demonstrates superhuman reasoning capabilities, surpassing the intelligence of nearly all graduate students across every discipline simultaneously. The company further predicts that Grok will uncover new physics and technology within the next 1-2 years.

Grok 4 Heavy leverages a multi-agent system, deploying several independent agents in parallel to process tasks and then cross-evaluating their outputs to deliver the most accurate and effective results.

Additionally, Grok 4 introduces new, hyper-realistic voices with rich emotional expression. Users can now utilize Grok 4 for advanced searches on 𝕏.

xAI states it is continuously working to improve Grok, with ongoing efforts including building a specialized coding model, enhancing multi-modal capabilities, and developing a robust model for video generation and understanding.

Grok 4 is available now

• Grok on Web: https://grok.com
• Grok on iOS: https://apps.apple.com/us/app/grok/id6670324846
• Grok on Android: https://play.google.com/store/apps/details?id=ai.x.grok
• Grok API console: https://console.x.ai

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