What Is Grok AI? Complete Beginner's Guide 2026
In January 2025, the name most people in the AI world were talking about was DeepSeek. In July 2026, there is a second name generating that same level of conversation: Grok. Not because Grok is new — it has existed since 2023 as xAI's AI assistant embedded inside X (formerly Twitter). But because what Grok is in July 2026 is dramatically different from what it was even six months ago. SpaceX acquired Anysphere — the company behind the Cursor coding IDE — for $60 billion in June 2026, merged xAI's AI research into the combined entity now called SpaceXAI, and launched Grok 4.5 on July 8, 2026, as the first frontier model co-developed from the ground up with an integrated development environment. The result is an AI that is simultaneously a consumer chatbot, a coding assistant, a video generator, a real-time search engine, and a voice agent — built on a model that ranks fourth on the Artificial Analysis Intelligence Index and first on agentic tool use among all models tested. If ...