Grok Build changelog

Grok 4.7 in Grok Build scores 37.6% on Terminal-Bench 4.0

The official Terminal-Bench 4.0 leaderboard lists Grok Build with Grok 4.7 at xhigh effort at 37.58% (plus or minus 3.5, 330 trials, about $3,683 for 324 of 330 trials), ranked 21st, up from 20.3% for Grok 4.6. The entry was posted September 21, 2026.

Grok Build CLI found uploading whole directories to xAI cloud storage

Users found that running the Grok Build CLI in a directory could upload that entire directory to xAI Google Cloud buckets, and one user reported it uploading the contents of their home directory. xAI disabled default data retention from July 12, said it is deleting all previously retained coding data, and released the Grok Build code under Apache 2.0 on July 15. The Hacker News thread drew 439 points.

Who is affected:

Developers who ran Grok Build before July 12, 2026, especially in folders holding secrets.

Action needed:

Rotate any credentials that sat in folders where you ran Grok Build before July 12, 2026.

Grok Build coding agent released in beta

xAI released Grok Build in beta, usable as an interactive terminal app, headlessly in scripts, or through the Agent Client Protocol.