If you're looking for a chatbot that takes advantage of large language models for conversational flow, Botpress could be a good choice. It taps into OpenAI's Large Language Models (LLMs) and Generative Pre-trained Transformers (GPT) to build AI agents that are fast to deploy. Botpress integrates with more than 100 platforms like WhatsApp and Telegram, and it offers features like professional greetings and database integration, so it's geared for both community and enterprise use.
Another good option is CustomGPT, which is geared for building custom chatbots using your own content and GPT-4 technology. It's easy to set up with no programming required with website integration or document upload, and it can generate accurate and persistent interactions. CustomGPT has three pricing levels for different business needs, and it's good for customer service and document search.
Chai AI is another interesting platform that crowdsources language model development to try to reach Artificial General Intelligence (AGI). You can train and submit models, and the service is designed to prioritize user enjoyment and safety. The service's ecosystem is mature enough to handle more than 1 million daily users, and it's got a developer platform for model submissions, so there's a lot of innovation and community involvement in language model development.