If you need a tool to speed up your D&D prep, Spawn is a great choice. This AI-based tool can create full-featured characters, campaigns and enemies in a matter of minutes. It can generate detailed character profiles with ability scores, inventory and other details. Spawn is particularly useful for reducing the time spent on character and campaign creation so you can spend more time on the fun stuff.
Another great option is LitRPG Adventures. This general-purpose information system uses large language AI tools like GPT-3.5 and DALLE3 to create a broad range of game content for D&D and other tabletop RPGs. It includes generators for character backstories, random dungeons, monsters, spells and magic shops, among other things. With more than 100,000 pieces of content to pull from and multiple membership tiers, LitRPG Adventures offers a rich foundation for creating interesting and complex game worlds.