Bing is now using AI to generate captions for some of its search result snippets. Bing is using GPT-4 to make the “search results more relevant and informative and helping users find the websites they are looking for more quickly,” Bing announced. Block AI-generated captions. Bing said you can block these AI-generated captions by using the NOCACHE or NOARCHIVE tags. You might want to check some of your more important keywords to see if Bing is changing the description in a way that may drive lower or higher click-through rates from Bing Search.