If you want to build a custom AI chatbot based on your WhatsApp chat history, Dolly AI is a good choice. The service lets you link your WhatsApp account, where it learns your communication style before training an AI clone in 15 minutes. The data used for training is permanently deleted, so your privacy is protected. The tool is intended for entertainment and user control, so it's a good way to try out AI.
Another good option is Guru, which is built straight into WhatsApp using the official ChatGPT API. Guru offers natural language, conversational interactions for a broad range of subjects. It uses advanced natural language processing to keep the conversation contextually relevant and secure. The Pro plan is available 24/7 and has a fair-usage policy, so it's good for keeping the conversation going.
If you're looking for a developer-focused service, ChatBotKit offers a lot of options, including support for multiple languages, custom datasets and integration with popular chat apps like WhatsApp. It supports a variety of foundation models and can be deployed quickly with its template wizard. That makes it good for everything from AI experiences to AI automation.
Last, Botpress is a fast-to-use chatbot builder with integration with more than 100 platforms, including WhatsApp. It has custom knowledge imports, database synchronization for personalization and strong security. Botpress has a free tier and paid options, so it can accommodate different needs and budgets.