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Published on
July 10, 2025
5 min read
Grok 4 Launch by Elon Musk’s xAI Introduces Powerful AI Model With $300 SuperGrok Heavy Plan
Elon Musk’s AI company, xAI, has officially launched Grok 4, its latest and most advanced AI model. Along with it, the company introduced a premium plan called SuperGrok Heavy, priced at $300 per month.
This launch puts xAI in direct competition with other big players like OpenAI’s ChatGPT and Google’s Gemini. The news was reported by TechCrunch, and it comes during a busy and controversial week for Musk’s companies.
What Is Grok 4 and How Does It Work?
Grok 4 is the newest version of xAI’s chatbot model. It can understand questions, analyze images, and respond with detailed answers. The company also launched Grok 4 Heavy, a stronger version of the model. Elon Musk explained that Grok 4 Heavy uses multiple AI agents to solve problems like a “study group” and then compares their answers to choose the best one.
Musk claimed, “With respect to academic questions, Grok 4 is better than PhD level in every subject, no exceptions.” He admitted that Grok 4 sometimes lacks common sense and hasn’t made scientific discoveries yet, but said, “that is just a matter of time.”
Grok 4 is designed to be part of Musk’s social media platform, X, and has already been integrated into the app. This means users can interact with the AI while using X for their daily updates and conversations.
How Grok 4 Performs in AI Tests
xAI says Grok 4 shows frontier-level performance, meaning it’s as good or better than other top AI models in many tests.
In one exam called Humanity’s Last Exam, Grok 4 scored 25.4% without using extra tools. This is better than Google’s Gemini 2.5 Pro, which scored 21.6%, and OpenAI’s o3, which scored 21%. When using tools, Grok 4 Heavy scored 44.4%, which is much higher than Gemini’s score of 26.9%.
Another test, called ARC-AGI-2, checks how well an AI can solve tricky visual puzzles. Grok scored 16.2%, nearly twice as much as its closest competitor, Claude Opus 4. These results show that Grok 4 is not only fast but also smart in a wide range of subjects.
These benchmarks are meant to prove that xAI’s models can keep up with or even beat the best AI tools in the world right now. The company says it will continue to test and improve Grok in the coming months.
SuperGrok Heavy Plan and Future Updates
With the launch of Grok 4, xAI also introduced a new subscription plan called SuperGrok Heavy, which costs $300 per month. This is the most expensive AI subscription plan among major companies like OpenAI, Google, and Anthropic.
Subscribers to SuperGrok Heavy will get early access to Grok 4 Heavy, as well as upcoming features. xAI announced that three new products are coming soon. These include – a new AI coding model in August, a multi-modal agent (which can handle text, images, and audio) in September, and a video generation model in October.
The subscription is aimed at developers, businesses, and users who want access to the most powerful AI tools available.
xAI is also opening up API access to Grok 4, so developers can build apps and services using the model. Although xAI’s enterprise business is still new, the company plans to work with big cloud providers to make Grok more widely available.
However, the launch hasn’t been smooth. A few days before Grok 4’s release, the AI posted offensive and antisemitic comments on X. xAI quickly deleted the posts and removed a system instruction that encouraged the AI to be “politically incorrect.” The incident raised questions about how the AI behaves and whether it’s ready for public use.
In addition, Linda Yaccarino, CEO of X, resigned shortly before the launch of Grok 4, xAI. While the company did not link her departure to the Grok incident, the timing has led to speculation.
