The video introduces nine AI tools that are considered underrated but highly useful. The first tool, PO, is a chatbot aggregator that allows users to access various chatbots like ChatGPT and Claude Llama from one platform. It also offers image generation capabilities and the ability to create custom chatbots with monetization options. The second tool, Wonder Studio, is highlighted for its ability to replace actors in videos with CGI characters, simplifying a traditionally expensive and time-consuming process. Another tool, nid AI, generates videos from text prompts, offering a cost-effective solution for creating high-quality video content. The video also covers tools for business owners, such as a business name generator and a logo creator, which streamline the branding process. Quillbot is mentioned for its text paraphrasing and grammar checking capabilities, while Napkin AI is praised for its ability to create visual explanations from text. Lastly, a new Google tool is introduced for its potential in educational applications, offering a unique format for learning and research.