Grok 4.5 is officially live now, and SpaceXAI is offering it completely for free for a limited time. Here's how to get started (save this for free AI usage): Option #1: Cursor (easiest, no extra setup) Sign up & Cursor (https://cursor.com/) Click the model selector in the chat or Composer panel and select Grok 4.5 from the model list. Start prompting. It's available on all Cursor plans, and SpaceXAI is currently offering free usage. Option #2: Grok Build If you want the full agentic coding harness rather than just chat-based assistance: Terminal command to enter: " curl -fsSL https://x.ai/cli/install.sh | bash " On first launch, it opens a browser to sign in with your xAI account. Once you're in, navigate to any project directory and run: " grok " That drops you into the interactive terminal agent, ensuring you run Grok 4.5. Free game.(Miles Deutscher)