Something less like a bot, and more like some favorite character of yours perhaps? Well look no further. I can use OpenAI's API for ChatGPT (or any other AI based API of your choice) and connect it with a custom discord bot to give your users the best possible experience.

The bot could just be ChatGPT but accessible through discord, or even as much as a custom character, with a deep backstory, which isn't an outsider but is rather a part of your server, where all the members have their own roles and parts in this custom lore. So the bot could be a permanent character with deep memory, allowing it to remember anything forever.

In addition to that I do offer additional functionality for the bot such as moderation, assistance etc.