Using Free Claude 3.5 Artifacts, the narrator built a fully functional React app in just 5 minutes. The app calculates the monthly salary, tax, take-home salary, and effective tax rate for Indian salary holders. The user starts by creating a CLA account and describing the desired application. The initial input was to create a simple take-home salary calculator using React and Tailwind, with visualizations and KPIs. Despite some initial errors, such as unsupported libraries, the Claude 3.5 Sonnet artifact quickly iterates and corrects the issues. The final app includes a salary breakdown, pie chart, and additional features like a text box for rent calculation. Although the tax rate calculation was inaccurate, the tool’s primary function is to aid in web application development. The narrator emphasizes the ease and speed of using Claude 3.5 Sonnet, especially for those with limited web development skills. This tool provides a significant advantage in generating boilerplate code and visualizations, making it a valuable resource for developing internal tools or web applications.