One of the best is Chat Data, which provides a customizable backend that lets you use your own models. It also comes with a branded interface for styling and customization, as well as an analytics tool to analyze conversations. It also has features like human support escalation and e-commerce store integration, so it's a good option for a lot of use cases. It also has a free tier, and the Professional tier is good for bigger operations.
EmbedAI is another good option, letting you build custom chatbots powered by ChatGPT using your own data from files, websites and YouTube videos. It's customizable in terms of look and feel, supports more than 100 languages, and can be integrated with other apps through API or Zapier. That makes it a good option for e-commerce customer service and educational apps, and it's got different pricing tiers for different levels of use.
If you're a business looking for a service with good security and deep analytics, Chatbase is a good option. It can take data from multiple sources to train chatbots, and it's got features like lead generation, auto-retraining and multilanguage support. The service scales, and you can start with a free option, so it's a good option for businesses trying to improve customer support and lead generation.
Chaindesk is another no-code option worth considering, using Generative AI to build custom chatbots trained on business data. It's got features for lead generation, team workflows and omnichannel conversations, and you can use human handoff and import custom data. Chaindesk has a variety of pricing tiers, so businesses of any size should be able to find a plan that works for them.