As per this post:

https://meta.stackexchange.com/questions/389582/what-is-the-network-policy-regarding-ai-generated-content

Although the guidance given in this public post is somewhat different from what was discussed a day earlier in a private moderator-only post, the effective policy is basically the same:

- Moderators on all SE sites are no longer allowed to take action on posts based on the fact that they *seem* to have been generated by an AI.  If a post matches certain AI patterns or if it is identified as AI-generated by various tools, that is not enough to warrant any moderator action.

- To be clear: AI-generated posts are allowed, as long as they meet other post guidelines (e.g. for quality).  

- "Bad" AI-generated posts can still be moderated in the same ways as any other bad posts, but as a practical matter, that type of moderation will be minimal due to the overall limited amount of moderation that occurs on Server Fault.