The launch of Grok 4 by xAI on July 9, 2025, via a livestream event, drew widespread acclaim from high-profile figures in tech, AI, and media. Billed by Elon Musk as "the world's smartest AI," surpassing PhD-level expertise across disciplines, the model showcased groundbreaking benchmarks and innovations.
Positive reactions highlighted Grok 4's capabilities. Musk himself praised it effusively during the demo, predicting it could "discover new physics next year" and emphasizing its multi-agent "Heavy" version for complex problem-solving. Tech billionaire Michael Dell lauded Grok 4 Heavy as "very impressive," signaling a potential shift in enterprise AI adoption. AI influencer and YouTuber Matthew Berman, in a livestream reaction, described the capabilities as "mind-blowing," focusing on speed, logic, and voice features that rival leading models like OpenAI's o3.
Futurist Peter Diamandis dedicated an episode of his "Moonshots with Peter Diamandis" podcast to reacting with AI experts Emad Mostaque, Salim Ismail, and Dave Blundin. Diamandis celebrated Grok 4's "moonshot" achievement, built in just 28 months, topping benchmarks like 100% on AIME math and 44.4% on "Humanity's Last Exam," far ahead of Gemini 3.5 (26.9%) and Grok 3 (21%). He quoted AI insiders crediting Musk's scaling genius. Mostaque praised its reasoning for "getting jobs done" and predicted seamless AGI integration. Comparisons favored Grok 4 over GPT-4 and Claude in performance and cost. Implications discussed: breakthroughs in physics, molecular manufacturing, and enterprise automation, with Grok 5 potentially unleashing trillions of agents.
"With Elon Musk's announcement of Grok 4, humanity is closer than ever before to creating AGI - artificial general intelligence - which would change everything by next year," said Glenn Beck. He highlighted Grok 4's potential to accelerate discoveries in physics and medicine.
AI Daily Brief suggests that Grok 4 pushes frontier performance toward AGI. In particular, its multi-agent "Heavy" mode enables artificial superintelligence (ASI) potential by handling complex, real-world tasks at lower costs.