The GCC steering committee has adopted a new AI contributions policy, as recommended by the GCC AI policy working group. This policy states that the project will decline any "legally significant contributions which include LLM-generated content or are derived from LLM-generated content." The definition of "legally significant" is drawn from the GNU Project maintainer guidelines, which sets the threshold at approximately 15 lines of code and/or text for copyright purposes.

However, GCC maintainers retain the discretion to accept legally significant test cases that are generated by a Large Language Model (LLM). The policy explicitly does not prohibit the use of LLMs for various development activities, including research, analysis, bug discovery and reporting, and patch review, provided that the LLM output