I’ve come across the same issue before, and usually those numbers appear in slugs when there’s already an existing page or post with the same title. Odoo adds them to avoid duplicate URLs. One workaround is to check for duplicates and then edit the slug manually in the backend so it stays clean. Another option is to use a custom module or rewrite rules if you want more control over how slugs are generated.

Did you notice if the numbers are being added only for certain posts, or does it happen every time you create a new blog entry?

Did you find the solution? I'm trying to create the AI ​​module here on Odoo Premise, but without success. I'm using Odoo 19.