OpenAI, Google, and Microsoft Back New Standard for Opting Out of AI Scraping

OpenAI, Google, and Microsoft are jointly backing a new interoperable standard that allows websites to express AI training preferences through a shared robots.txt-style signal, moving beyond the fragmented opt-out mechanisms that exist today. OpenAI has separately committed to honoring this shared signal, meaning sites that set their preferences once will have them respected across multiple major AI training pipelines simultaneously. This is a meaningful shift for developers and content operators who have struggled to manage individual opt-out processes with each AI company separately. The standardization effort reduces compliance overhead and gives web properties clearer control over how their data is used in model training. Developers building web applications or managing content platforms should review and implement the new signaling mechanism as it becomes widely adopted.