harpy.chat is a free AI character chat platform for roleplay, group chat, and storytelling. Users can chat with a wide variety of AI characters, from original creations to fandom-based ones. The platform features dynamic emotion portraits that change with the conversation, allowing users to read the character's facial expressions. Users can create their own personas to define their identity in chats. Group chat allows multiple characters to interact with each other. The platform supports multiple AI models including Claude, Gemini, DeepSeek, and more, accessible via a monthly credit pool with subscription plans (harpy++ and harpy+). A creator program lets users earn income from their characters. The platform is available on mobile via browser install.