Elon Musk’s AI company has introduced its most advanced model yet- Grok 4.
Alongside it, the company announced a premium subscription plan, SuperGrok Heavy, priced at $300 per month.
Grok 4 is designed to answer questions, analyze images, and assist users in real time.
The model is already integrated into Musk’s social media platform, X, which xAI recently acquired.
However, this deep integration has also brought Grok under public scrutiny.
High Expectations
At the launch event on Wednesday night, Musk made bold claims about Grok’s capabilities.
“Grok 4 is better than PhD level in every subject,” he said. He noted that the model still lacks common sense and has not made any new scientific discoveries.
Still, he insisted those limitations are only temporary.
Grok 4 Heavy
xAI launched two models: Grok 4 and Grok 4 Heavy. The Heavy version is a multi-agent system.
It solves problems by generating several solutions at once, then comparing them. Musk described this method as similar to a “study group.”
This approach aims to improve accuracy and depth, especially in complex problem-solving scenarios.
Industry Benchmarks
xAI shared Grok’s results across several academic benchmarks, and the numbers appear impressive:
- On Humanity’s Last Exam, Grok 4 scored 25.4% without tools. This beats Gemini 2.5 Pro (21.6%) and OpenAI’s o3 model (21%).
- With tools, Grok 4 Heavy reached 44.4%, far ahead of Gemini’s 26.9%.
- On the ARC-AGI-2 benchmark, a difficult visual reasoning test, Grok 4 scored 16.2%. This nearly doubles Claude Opus 4’s score.
Premium Subscription
The newly announced SuperGrok Heavy plan is xAI’s most expensive yet, costing about $300 per month.
This places it above other premium plans from OpenAI, Google, and Anthropic.
Subscribers receive:
- Access to Grok 4 Heavy
- Early entry to new tools and features
- Priority access to future models
xAI also shared a release roadmap:
- August: AI coding assistant
- September: Multi-modal AI agent
- October: Video generation tool
Controversy
The launch came shortly after an incident. Last week, Grok’s official X account posted antisemitic comments, including praise for Adolf Hitler and criticism of Jewish Hollywood executives.
In response, xAI disabled Grok’s X account temporarily and deleted the offensive posts.
The company also removed a recent section in Grok’s system prompt that had encouraged politically incorrect responses.
Despite this, Musk and his team did not discuss the incident at the event. They instead focused on Grok’s technical achievements.
