Grok Build is xAI's CLI coding agent for developers who want agentic software work to happen directly in the terminal rather than inside a chat window. It opens as a local TUI, can run headless with --single, and exposes controls for plan mode, permission modes, model effort, sandbox profiles, and JSON output. In aicoolies taxonomy it belongs in AI CLI Agents, Terminal & CLI Tools, and AI Coding Assistants because the product is primarily a command-line coding workflow.
On 16 September 2026, xAI shipped Memory in Grok Build: after completed turns, the agent can capture durable conventions, decisions, and project facts as markdown topics (workspace and global scopes), then read them back in later sessions. Browse with /memory (alias /mem), consolidate with /dream (also periodic in the background), and use /remember and /flush when you want explicit save or write-through. Current-conversation instructions override stored notes. Memory applies to new sessions (/new or a fresh grok). Sources: https://x.ai/news/grok-build-memory · https://docs.x.ai/build/modes-and-commands
The differentiator is parallel execution. The installed CLI exposes --agents for subagent definitions, --best-of-n for headless parallel attempts, --worktree for isolated Git worktree sessions, and --no-subagents when you want a single-agent path, alongside cross-session Memory. Those capabilities make Grok Build especially relevant for teams exploring subagent swarms, local repo automation, and worktree-isolated task fanout alongside Claude Code, Codex, Goose, Amp, and Gemini CLI.
Since the May Score window, vendor changelog notes also cover parallel-subagent defaults, worktree/headless polish, PostToolUse feedback, and usage visibility — see https://x.ai/build/changelog.
Community discussion has raised questions about what leaves the machine during Build sessions (for example HN wire-level threads). Treat as open buyer context; privacy Score remains 72 from the May review.
Access is typically SuperGrok or X Premium+ for interactive use, with metered xAI API for headless paths. The official installer is at https://x.ai/cli/install.sh. Confirm current access tier, documentation, and model availability on vendor pages before purchase decisions.




