Character.AI is the leading platform for creating and chatting with AI personalities that feel remarkably human. Built by former Google AI researchers, the platform uses advanced language models to power characters with distinct personalities, consistent memories, and natural dialogue patterns. Browse millions of community-created characters including historical figures like Socrates and Einstein, fictional heroes from anime and games, helpful assistants like language tutors and therapists, or creative collaborators for brainstorming and storytelling. Each character maintains conversation history across sessions, developing deeper relationships over time and remembering details about your interactions. Create custom characters by defining personality traits, example dialogues, and backstories—no coding required. The platform supports voice conversations for immersive roleplaying, group chats where multiple characters interact simultaneously, and image generation to visualize your creations. C.ai+ subscribers get priority access during peak times, faster response generation, early access to new features, and an exclusive community supporter badge. Popular use cases include language learning with native speaker personas, creative writing development, emotional support conversations, educational tutoring across subjects, and pure entertainment through interactive storytelling. Used by over 20 million monthly users worldwide—students practicing conversations, writers developing character arcs, gamers exploring lore, and anyone seeking engaging AI companionship.