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Creator Magic
xAI Just Dropped Their Claude Code Killer
⏱ 11 min video · 2 min read15 May 2026Worth watching
TL;DR
xAI released Grok Build, a CLI-based agentic coding tool in beta that competes directly with Claude Code. The creator demos it building a fully playable Asteroids-style browser game from a single prompt in about five minutes, then extends it using six parallel sub-agents adding enemies, power-ups, chiptune music, and more.
Key points
1
Grok Build is xAI's new CLI coding agent (beta), positioned as a direct competitor to Claude Code, built in Rust for speed and featuring a mouse-interactive terminal UI.
2
Installation is a single command; authentication opens a browser window automatically, and the tool supports plan mode, always-approve mode, and the programmatic Grok -p pipe command.
3
The tool natively supports parallel sub-agents: the creator delegated six independent feature workstreams simultaneously, each running in its own git worktree.
4
Context window is 500,000 tokens; the full Asteroids game build used only 10.6% (~54,000 tokens), leaving substantial headroom for large projects.
5
Pricing shown during the demo: free 3-day trial, then a special offer of $99 for six months — roughly half the cost of a Claude Code plan. Existing Claude .md files and MCP setups port over without changes.
Actionable insights
→
Use plan mode first (Shift+Tab) to review and approve Grok Build's strategy before it writes any code — this catches architectural issues early.
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Switch to always-approve mode once you trust the plan to let sub-agents run uninterrupted; use the Grok -p command for programmatic tasks like generating README files in streaming JSON.
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If you are a Claude Code user concerned about the upcoming API-credit changes to the Claude -p command, Grok Build accepts your existing agents.md, MCP configs, hooks, and skills with minimal migration effort.
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Invoke the built-in /btw command to ask Grok Build quick questions on the fly while a background agent is still running — it answers inline without interrupting the main task.
Notable quotes
“Build in five minutes. Made a retro arcade game that blew me away compared to anything I've built before in just one shot.”
“That's half my Claude Code plan.”
“I also demonstrated a few features that no other coding CLI presently has.”
Worth watching?
✅
Worth watching the full video?
Watch if you want to see the live terminal workflow and parallel sub-agent feature in action — the key capabilities and pricing details are all captured here, so skip unless the hands-on game demo itself appeals to you.
Saved you some time? The creator still deserves a like.
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