We at IngestAI[1] are in similar space albeit with different focus - we answer from all internal documentation in Slack/Discord/Whatsapp. We did a show hn just a few weeks ago[2] & has been wild since then - we have close to 10k+ users and counting.

If you would like build slack/discord/whatsapp/telegram bots answer your customer questions from internal docs - please try us

[1] : https://ingestai.io/

[2] : https://news.ycombinator.com/item?id=34909921