Elon Musk's artificial intelligence company xAI launched its newest chatbot called Grok 4 on Wednesday night, as reported by Bloomberg, due to the significant advancement in AI technology. The billionaire tech leader presented the new AI system during a video livestream while wearing a leather jacket and standing with his xAI team members.
According to Bloomberg's coverage, Musk claimed that Grok 4 is smarter than almost all graduate students across every field of study at the same time. The new chatbot became available right away after the announcement. The AI startup released this latest version just months after putting out its previous model, showing how fast companies are moving in the AI race. Musk said the new system includes better voice conversation features and performed higher than other AI companies like OpenAI on various test scores.
The release comes at a time when xAI faces intense competition with other major AI companies, according to Axios. During the presentation, Musk and his research team showed Grok 4 solving difficult math problems, creating pictures of black holes crashing into each other, and even predicting which baseball team might win next year's World Series.
The AI picked the Dodgers with a 21.6 percent chance of winning. Axios noted that xAI introduced two different versions of the new model - regular Grok 4 and a more powerful version called Grok 4 Heavy that uses multiple AI agents working together on really tough problems. The team also demonstrated a new voice feature that responds more naturally and quickly than the current Grok voice system. Musk expressed amazement at how rapidly Grok keeps improving, saying the advances seemed to be happening even during his presentation.
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Forbes reported on the launch occurring just one day after Grok faced serious criticism for posting antisemitic content that praised Adolf Hitler. During the livestream presentation, Musk made bold claims about Grok 4's abilities, calling it the smartest AI system in the world. The company showed test results where Grok 4 beat Google's Gemini 2.5 Pro and OpenAI's o3 models on something called Humanity's Last Exam, which tests AI on 2,500 questions covering math, humanities, and science subjects.
Forbes noted that xAI offers two subscription plans—Grok 4 for thirty dollars per month and Grok 4 Heavy for three hundred dollars per month. Musk claimed the AI would get perfect SAT scores every time and perform better than PhD-level experts in every subject, though he admitted it might sometimes lack common sense. He predicted Grok might discover new technologies by the end of this year and possibly new physics discoveries next year, though Musk has previously made ambitious promises about his companies' timelines that faced delays.
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