Grok Build

Grok Build is xAI's first dedicated coding agent, built to run from your terminal and handle complex software engineering tasks end to end. Like Claude Code and Codex CLI, it is not a chatbot that suggests snippets — it plans projects, writes and edits files, runs shell commands, manages dependencies, and iterates against build and test output until the job is done. The underlying model is Grok 4.3, and the tool can spawn multiple concurrent subagents for larger tasks, each running in its own isolated git worktree (a separate copy of the repo) so parallel edits do not collide.

The feature that most distinguishes Grok Build from its rivals is plan mode. For complex tasks, the agent first produces a step-by-step execution graph that you can read, comment on, or rewrite entirely before a single file is touched. Once approved, every change surfaces as a clean diff (a readable summary of exactly what changed). This inspect-first approach is a direct response to the complaint that AI coding agents make changes in unexpected places.

Grok Build launched in early beta on May 14, 2026, initially available only to SuperGrok Heavy subscribers at $300 per month, putting it squarely in enterprise territory. It picks up your existing AGENTS.md, skills, MCP servers, and plugins automatically, and xAI deliberately built it to be compatible with the Anthropic skill format, so tooling built for Claude Code largely carries over without modification.