If you're looking for a replacement for Embed Generator, ChatBotKit could be a good choice. It lets developers and nondevelopers build AI chatbots that span multiple interfaces for a more conversational and natural interface. With options for custom datasets, support for more than 100 languages, and integration with chat apps like Discord, ChatBotKit is a good foundation for building AI chatbots that meet your needs.
Another good option is EmbedAI. This service lets you create your own custom AI chatbots using ChatGPT, training them with data from files, websites and YouTube videos. It supports more than 100 languages and can be integrated with other apps through an API or Zapier. That makes it useful for everything from e-commerce customer service to educational sites. The pricing tiers are adjustable, with Basic, Pro and Advance options for different budgets.
Although it's not specifically geared for Discord, Botpress is a more general-purpose chatbot builder that uses OpenAI's Large Language Models. It has more than 100 integrations and features like database synchronization, LLM integration and an API and SDK for customization. It's got a lot more features, but its free tier includes some useful tools for small projects, so it's worth considering for a wider range of uses.