Grok Build Just Went Open Source, xAI Drops the Paywall
xAI just open sourced Grok Build, the coding agent that was charging $300 a month.
Transcript
xAI just open sourced Grok Build, the coding agent that used to cost three hundred dollars a month.
Grok Build is xAI's terminal coding agent. It ships plan mode, sub agents, and skills, and it installs with one curl command.
Eight sub agents can work in parallel inside one Grok Build session.
May fourteenth, Grok Build launched as a paid tool. July ninth, Grok four point five shipped. Today it goes open source.
The bottom line: Grok Build is now free and natively compatible with the Claude Code config format.
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Sources
Every claim in this video comes from the top ranking coverage of this topic. The claims and where each one came from:
- Grok Build install via single curl command, plan mode, early beta pricing at three hundred dollars per month(I Put Grok Build to the Test)
- Supports up to eight sub agents in parallel, Grok Skills reusable across sessions, opened to Super Grok and X Premium Plus(NEW Grok Build Beta Update is INSANE!)
- Agents.md and skills setup, plan mode and agent mode, learning curve similar to Claude Code(I Am Trying Grok Build for a Real Project)
- Grok Build launched May 14, 2026 and is natively compatible with the Claude Code configuration format(Elon Musk Just Shocked OpenAI With Grok 5)
- Grok 4.5 released July 9, 2026(Grok 4.5 explained in 8min..)
- Grok Build goes open source July 15, 2026(xAI announcement: Grok Build Open Source)