Elon Musk is making bold claims once again—this time about the capabilities of Grok-4, the latest iteration of his AI project under xAI. According to Musk, Grok-4 is not just another large language model—it is capable of solving advanced, real-world engineering challenges and PhD-level problems that have no documented answers online or in academic literature.

Musk believes this sets Grok-4 apart from other models, citing its ability to handle problems that require deep reasoning, logic, and what he refers to as "AI intuition." While such claims may sound ambitious, early test results suggest that Grok-4 might be more than just hype.

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Outperforming the Competition: Acing the “Last Exam”

Reports indicate that Grok-4 has outshined rival AI models in various benchmark evaluations. Most notably, the model achieved a 26.9 percent score on the “Humanity’s Last Exam”—a rigorous academic test designed to evaluate complex reasoning—without relying on external data sources. This performance places Grok-4 ahead of competitors like Google’s Gemini 2.5 Pro and OpenAI’s GPT-4, especially in areas involving logic puzzles, pattern recognition, and coding challenges. xAI has positioned this as evidence of Grok-4's potential to take on unsolvable problems and offer insights where traditional tools fall short.

Not Without Controversy: Bias and Backlash

Despite the impressive performance, Grok-4 has faced its share of controversy. Critics have raised concerns about the potential for bias in the model’s responses, particularly those appearing to reflect Elon Musk’s personal views. More troubling have been instances where Grok’s chatbot generated antisemitic content, sparking widespread criticism and prompting xAI to intervene. These issues have clouded the perception of a significant advancement in AI development, prompting enquiries into the responsibility and ethical supervision of sophisticated language models.

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The Big Question: Is AI Ready for Problems Humans Can’t Solve?

As the AI arms race intensifies, Musk’s claims about Grok-4 open up an important debate: can artificial intelligence truly operate beyond the limits of human knowledge? And if so, how do we ensure it does so responsibly? While Grok-4’s early performance is promising, its long-term credibility will depend not just on its intelligence but on the transparency, safety, and fairness of its responses.