xAI Launches Grok Build Coding Agent in Public Beta for SuperGrok Heavy Subscribers

xAI has launched its first AI coding agent, Grok Build, an agentic command-line interface designed to help developers write code, build applications and automate programming workflows directly from a terminal. The early beta went live on May 14 and is available exclusively to subscribers of xAI’s SuperGrok Heavy tier, with xAI also offering an introductory promotion that lowers the monthly price for the first six months. CEO Elon Musk posted on X to solicit feedback as the company begins iterating on the product.

xAI positions Grok Build as more than a chatbot by emphasizing its ability to carry out multistep engineering tasks in a workflow context, with the model delegating work to multiple specialized subagents. In xAI’s description, the system can coordinate parallel efforts on larger projects, while developer controls are built in to reduce the risk of unwanted changes. The beta also includes a “plan mode,” which presents an execution plan before code is modified, allowing users to review and approve steps prior to making changes. xAI has also discussed an “arena mode” concept in which multiple agent outputs would be compared and ranked before a developer sees a result,...