Categories Diddy and October Surprise 2024 Elon Musk’s xAI launches Grok 4 alongside a $300 monthly … Post author By Mike Nova Post date July 10, 2025 Elon Musk’s AI company, xAI, late on Wednesday released its latest flagship AI model, Grok 4, and unveiled a new $300-per-month AI subscription plan, SuperGrok Heavy. Grok is xAI’s answer to …