OpenAI to honor shared robots.txt signal for AI training preferences

[OpenAI] OpenAI said on October 30, 2026 that it will honor a shared robots.txt signal to help website operators communicate their AI training preferences to participating providers. According to OpenAI, the signal is intended to let websites express their preferences on the use of their content for AI training in a common form. OpenAI said participating providers will use the signal to recognize and respect those preferences.