Your new hires spend week one hunting for things, not learning the job.
Onboarding is mostly an information problem dressed up as a people problem. The knowledge exists, it is just scattered, and that is exactly the kind of thing an AI assistant on your own material can fix.
Ask someone what their first week at a new job was like and you will hear the same thing: a lot of waiting, a lot of "who do I ask about this?", and a slow hunt for documents, logins, and the unwritten rules everyone else already knows. Not learning the actual job. Just finding the pieces of it.
Onboarding is mostly an information problem dressed up as a people problem. The knowledge exists. It is just scattered, and the new person doesn't know where to look or who to ask.
The cost is quiet but real
A new hire blocked on "where's the template, who approves this, how do we do X here" doesn't file a complaint. They just go slower, interrupt a colleague, or guess. Multiply that across a few weeks and a few people, and onboarding quietly taxes the whole team — the new person and everyone they have to ask.
Where AI fits
This is a strong use case precisely because the answers already exist somewhere: in docs, past threads, policies, the wiki nobody maintains. An assistant that can answer "how do we do X here" from your own material turns a week of asking around into a question typed once. The new hire gets unblocked without pulling someone off their work, and the answers are consistent instead of depending on who they happened to ask.
It doesn't replace a good manager or a proper welcome. It removes the dozens of small "where do I find" frictions that fill week one and have nothing to do with whether the person is any good at the job.
Where to start
Write down the questions your last three new hires actually asked in their first fortnight. You will see the same fifteen or twenty come up again and again. That list is your onboarding assistant's job description, and it is almost certainly answerable from things you already have written down somewhere.