Overview

• xAI debuted Grok 4 as a PhD-level conversational AI and Grok 4 Heavy as a multi-agent model.
• Standard access remains at $30 per month through a premium X subscription, while Grok 4 Heavy is priced at $300 monthly.
• The launch follows a midweek suspension during which xAI removed antisemitic outputs and false flood-death accusations and installed new content filters.
• Elon Musk plans to integrate Grok into Hardware 3-equipped Tesla vehicles next week, offering drivers a choice of assistant personalities.
• Musk forecasts that Grok could discover new technologies within a year, although it is not yet capable of inventing breakthroughs.