Elon Musk’s artificial intelligence company, xAI, has officially launched Grok 4, its most advanced AI model to date. The announcement, made during a high-profile livestream on July 10, 2025, positions Grok 4 as a direct competitor to OpenAI’s upcoming ChatGPT 5 and Google’s Gemini 2.5 Pro, raising the stakes in the rapidly evolving AI landscape.

Aiming for the Top: Claims of Unmatched Intelligence

During the livestream, Musk and the xAI team introduced Grok 4 as the world’s most powerful AI model, touting its ability to outperform even PhD-level researchers across every academic discipline. “Grok 4 is better than a PhD level in every subject, no exception,” Musk asserted, emphasizing the model’s advanced reasoning and problem-solving capabilities.

Despite these bold claims, Musk acknowledged the challenges ahead, noting that while Grok 4 has not yet invented new technologies, its potential for groundbreaking discoveries remains within reach.

Addressing Controversy: Grok’s Recent Setbacks

The launch comes amid recent controversy for Grok, as the model faced criticism over rogue behavior and the generation of antisemitic content. These incidents sparked concern within the AI community about the risks of advanced language models and the importance of robust safeguards. xAI has since taken steps to address these issues and reinforce its commitment to responsible AI development.

Grok 4 Release Details: Availability and Platforms

Grok 4 became officially available on July 10, 2025. Users can access the new AI model through the Grok app, which supports both Android and iOS devices. The rollout aims to make cutting-edge AI accessible to a broad audience, from casual users to enterprise clients.

Benchmark Performance: Outpacing the Competition

Grok 4’s performance on industry benchmarks has been a major talking point. On the rigorous “Humanity’s Last Exam”—a test of 2,500 questions spanning mathematics, humanities, and science—Grok 4 scored 25.4% without external tools, surpassing Google’s Gemini 2.5 Pro (21.6%) and OpenAI’s o3-high (21%). When equipped with advanced tool use, Grok 4 Heavy achieved an impressive 44.4%, widening the lead over its closest rivals.

Other notable benchmark results include:

• ARC-AGI-2 Test: Grok 4 set a new state-of-the-art record with a score of 15.9%, nearly doubling the next-best commercial competitor.
• GPQA Benchmark: Grok 4 scored 87.5%, with Grok 4 Heavy reaching 88.9%.
• AIME 2025 Test: Grok 4 Heavy achieved a perfect 100% accuracy.

These results position Grok 4 as a frontrunner in the global AI race, challenging established leaders like OpenAI, Google, and Anthropic.

Introducing Grok 4 Heavy and the SuperGrok Heavy Subscription

Alongside the standard release, xAI unveiled Grok 4 Heavy—a multi-agent system designed for advanced users requiring higher performance and collaborative problem-solving.

To access this top-tier model, xAI introduced the SuperGrok Heavy subscription, priced at $300 (approximately 25,700) per month.

This premium plan targets researchers, developers, and organizations with intensive AI needs, offering higher rate limits and early access to upcoming features.

What’s Next for xAI and Grok?

Looking ahead, xAI has ambitious plans to expand Grok’s capabilities, including the launch of a dedicated AI coding model in August, a multimodal agent in September, and a video generation system in October. The company is also working to integrate Grok into enterprise platforms and cloud environments, aiming to make its AI models a staple for businesses worldwide.

Key Takeaways

Grok 4 is now available on Android and iOS, with a premium “Heavy” version for power users.

• The model outperforms leading competitors on major benchmarks, including Humanity’s Last Exam and ARC-AGI-2.
• SuperGrok Heavy subscription is the most expensive consumer AI plan to date, reflecting its advanced capabilities.
• xAI is addressing recent controversies and focusing on responsible AI development as it pushes the frontier of artificial intelligence.

Grok 4’s launch marks a significant milestone in the AI industry, signaling Elon Musk’s determination to lead the next wave of innovation and competition