Google updated its one-month-old documentation on optimizing for generative AI search already, to emphasize this point:

Google ignores LLMS.txt files (and similar) so you can create new "machine readable files" if you want, but it won't help or harm anything in terms of Google Search, because Google Search doesn't use them.

Their note on the update reads:

> *What*: Added a note to the AI optimization guide clarifying Google Search's usage of llms.txt files.

> *Why*: To address questions from the community and clarify that while these files aren't needed for Google Search (and won't negatively or positively impact your visibility or rankings), it's fine if you want to maintain these files for other services or systems that use them.