Hero is a tool designed to facilitate and expedite the process of selling items online by utilizing artificial intelligence. The tool primarily aids in identifying, pricing, and listing items for sale. By simply pointing your phone camera at an item, Hero uses computer vision to classify the item, figure out a recommended price, and generate the product listing, including the title, description, condition, and photos. The tool aims to address one of the major challenges faced by sellers, ranging from casual to power sellers, which is the tedious listing process. There are suggestions of a potential integration with online marketplaces like Facebook Marketplace, though it's not explicitly stated if this feature is currently available. The ability of the tool to enable real-time item scanning and pricing suggests use of advanced vision models.