If you're looking for a Maxbot alternative, Mendable is a good option. It lets companies create AI chatbots for customer support and sales, with customization and training that continues as you use it. Mendable supports multiple models, including GPT-4, and has enterprise features like SOC 2 Type II Certification and Role-Based Access Control.
Another good option is UBOS, an all-in-one, low-code environment for creating custom Generative AI and AI applications right in your browser. It supports a range of AI models, including LLMs like ChatGPT and Llama 2, and can be deployed with a single click to any cloud. UBOS is geared for both technical and nontechnical people, so it's good for startups and enterprises.
Sendbird is another option. It lets developers create messaging experiences spanning multiple communication channels, including chat, AI chatbots, SMS, WhatsApp and voice and video. It has features like targeted messaging, group chat and AI-powered conversations, and offers several pricing tiers, including a free developer plan.
Last, TalkJS offers a full-featured chat API and SDK foundation that spans a wide range of chat use cases. It includes features like prebuilt UI, out-of-the-box notifications and customizable styling. TalkJS supports multiple platforms and has a free development mode, so it's a good way to add powerful chat abilities to your products.