xAI just widened the door on Grok Build, its terminal-based coding agent. After a limited early access period, the beta is now open to all SuperGrok and X Premium+ subscribers. That means the full feature set -- Plan Mode, image and video generation via Imagine, and the CLI for building automations and orchestrators -- is available to a much larger audience.
What Grok Build actually is
A chatbot responds to a single prompt with a single output. An agent, by contrast, is given a goal, plans multi-step actions to achieve it, executes those actions (file edits, code runs, tool calls), observes results, and replans when reality diverges from the plan. Grok Build is firmly in the second category. It runs directly in your terminal. You install it with a single command, point it at your project, and start issuing natural language instructions. Behind the scenes, it uses the Grok language model and a custom orchestration engine to plan, write, edit, and test code.
The release brings three major new capabilities: Plan Mode for structured task planning, Imagine for AI-powered image and video creation, and a CLI for building automations and orchestrators.
Plan first, edit later
The headline feature is Plan Mode, and it addresses the most common failure mode of agentic coding tools: the agent starts executing and makes a mess before you realize what it's doing. The plan viewer makes it easy to architect complex projects. In plan mode, every edit is blocked until you approve -- you can approve the plan, comment on individual steps, or rewrite it entirely.
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