GCC Will Decline Any 'Legally Significant' LLM-Generated Contribution — Roughly 15 Lines Is the Line

LWN.net·high signalXBlueskyLinkedInCopy link

The GCC steering committee accepted an AI contributions policy on July 29 declining any legally significant contribution containing or derived from LLM-generated content, using the GNU maintainer threshold of about 15 lines of code and/or text. Trivial LLM-generated changes are acceptable if disclosed, and maintainers may accept legally significant LLM-generated test cases — the carve-out that makes this a copyright-provenance policy rather than a blanket ban. Research, bug hunting, and patch review with LLMs stay permitted as long as output never lands in the tree.