Leading AI Labs Endorse Shared Robots.txt Opt-Out Signal for AI Training Data

Major artificial intelligence laboratories, including OpenAI, Google, Microsoft, and Anthropic, are backing a shared robots.txt signal to allow content creators to opt out of having their data used for AI model training. This development, reported on November 1, 2026, addresses growing concerns over data scraping practices and aims to establish a standardized mechanism for controlling data access for AI development.