If you're looking for a customizable chatbot solution you can embed in your app, Chatbase is a great choice. This AI chatbot platform lets you build and embed chatbots directly into your website or application using an API. It's good for customer support, lead generation and user engagement, and has features like whitelabeling, security and powerful AI models. The service supports multiple languages and has tiered pricing, including a free option, so it's good for businesses of all sizes.
CustomGPT is another interesting option, using GPT-4 technology for a more knowledgeable and authoritative conversation. It's easy to set up with no programming required, either by integrating it with a website or uploading a document, and it can be deployed in a variety of ways, including through an API and embedded in a website. With a large data capacity and query volume, CustomGPT is geared for businesses that want to improve customer interactions and productivity.