AI tools are useful in a WordPress workflow, but not evenly. They are strong at the parts of the job that are repetitive and verifiable, and weak at the parts that need judgement about your specific site.
Where it saves real time
Drafting alt text for a media library you neglected. Writing the regex for a redirect rule. Explaining what a snippet you found on a forum actually does before you paste it into functions.php. Turning a rough list of services into first-draft page copy that you then rewrite in your own voice.
Where it costs you time
Generating large amounts of page content that you publish without editing. It reads as generic, it does not rank, and you end up rewriting it anyway. Also: asking for plugin recommendations without checking whether the plugin is still maintained, because a model can confidently name something that was abandoned three years ago.
A practical rule
Use it for first drafts and explanations, not for final decisions. Anything it produces that touches your database or your live site gets read by you first. That single habit removes most of the risk while keeping most of the speed.