First up is Botpress, a powerful tool that offers an end-to-end AI agent stack based on OpenAI's Large Language Models (LLMs) and Generative Pre-trained Transformers (GPT). It has more than 100 integrations with services like WhatsApp, Telegram and Make.com, and offers features like professional greetings, database synchronization for personalization and customization through an API and SDK. Botpress offers a free tier you can use to get started.
Another option is ChatBotKit, which lets developers and nondevelopers build AI chatbots in natural language that span multiple interfaces. It supports a variety of foundation models from companies like OpenAI, Anthropic and Mistral, and offers features like a coding assistant, support for multiple languages, custom datasets and integration with chat apps like Slack and Discord. ChatBotKit also prioritizes user privacy and security with strong content screening and blocking abilities.
For a no-code option, check out Chaindesk, which lets you build custom AI chatbots trained on your business data. It offers omnichannel conversations, human handoff and integration with a variety of data sources like Notion and Google Drive. Chaindesk is good for automating customer support and lead generation, and it offers several pricing tiers for different business needs.
Last is Chatling, a no-code tool that lets businesses automate customer support, lead generation and sales by integrating with their websites. It supports more than 85 languages and offers full customization through a drag-and-drop builder. It's flexible and works with businesses of all sizes, with pricing plans that include a free tier.