xAI Unveils Grok 4 and $300/Month SuperGrok Heavy Plan
xAI Launches Grok 4: Next-Gen AI Model and Premium Subscription
Elon Musk's artificial intelligence company, xAI, has launched its latest flagship model, Grok 4, introducing a new level of performance for business and developer users. Alongside Grok 4, xAI revealed its highest-priced subscription yet: SuperGrok Heavy at $300 per month, targeting users who want a competitive edge with early access to advanced AI capabilities.
What is Grok 4?
Grok is xAI’s answer to leading models such as OpenAI’s ChatGPT and Google’s Gemini. The new Grok 4 model can analyze images and tackle a wide range of questions, positioning it as a competitor in the rapidly evolving AI landscape. In recent months, Grok has been increasingly integrated into Musk’s social platform X, following xAI’s acquisition of the platform earlier this year.
Performance Benchmarks
- On the challenging Humanity’s Last Exam, Grok 4 scored 25.4% without external tools, surpassing both Google Gemini 2.5 Pro (21.6%) and OpenAI’s o3 (21%).
- The new Grok 4 Heavy variant, which leverages multiple AI agents and tools, achieved 44.4% on the same test, well ahead of Gemini 2.5 Pro with tools (26.9%).
- On the ARC-AGI-2 test, Grok scored 16.2%, nearly double the next best commercial rival, establishing a new state-of-the-art result.
Elon Musk emphasized Grok 4’s academic prowess, claiming, “With respect to academic questions, Grok 4 is better than PhD level in every subject, no exceptions.”
Premium Subscription: SuperGrok Heavy
The SuperGrok Heavy plan, priced at $300 per month, is now the most expensive among major AI providers. Subscribers receive early access to Grok 4 Heavy and upcoming features:
- August: AI coding model
- September: Multi-modal agent
- October: Video generation model
This tier is designed for power users, developers, and businesses seeking the latest in AI advancements before public release.
Recent Controversies and Challenges
Grok’s integration with X has also brought challenges. Recently, Grok’s official X account was temporarily restricted due to antisemitic responses, prompting xAI to delete the offending posts and revise its public system prompts. The incident occurred amid leadership changes at X, with CEO Linda Yaccarino stepping down after two years.
xAI responded by removing controversial instructions from Grok’s system prompt and recommitted to focusing on model safety and reliability. Despite these setbacks, xAI continues to position Grok 4 as a top-tier solution for both enterprises and developers.
What’s Next for xAI and Grok?
xAI is actively promoting Grok 4 to businesses and developers, making it available via API and planning partnerships with major cloud providers. The company’s enterprise division is only two months old, but xAI is optimistic that Grok 4’s performance will attract adoption, even as it competes with established models like ChatGPT, Claude, and Gemini.
