Bing adds separate AI training and grounding controls

Publishers get separate controls for model training and AI-answer grounding, with a 2027 migration deadline for legacy directives.

In this brief: 4 sections 1 min read

- AI Training can be controlled in robots.txt or at page level. AI Grounding is page-level and supports Allow, DisallowExtended, or Disallow; these settings do not change traditional Bing search eligibility.
- The change matters especially to sites using NoArchive or NoCache today. Grounding controls cover generated responses in Bing, Copilot and Microsoft 365, with DisallowExtended limiting third-party grounding services.
- Publish the new AI Training preference and, where needed, page-level AI Grounding settings. Existing NoArchive/NoCache users that want grounding restrictions should also record the temporary preference in Bing Webmaster Tools.
- Temporary grounding preferences open December 15, 2026. After March 1, 2027, NoArchive and NoCache will no longer be read as training or grounding preferences.

Useful?