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Character.AI is a conversational AI platform founded by Noam Shazeer and Daniel De Freitas, both former Google engineers. Shazeer is the co-inventor of the Transformer architecture (the foundation of all modern LLMs) and led the development of Google's LaMDA chatbot. The company is headquartered in Menlo Park, California. Character.AI allows users to create and interact with AI-powered characters including fictional personas, historical figures, and custom assistants, with over 20 million monthly active users. In August, Google signed a $2.7 billion non-exclusive licensing deal with Character.AI, simultaneously hiring back Shazeer and De Freitas to work on Google DeepMind's Gemini project. Character.AI continues operating independently under interim CEO Dominic Perella, pivoting toward enterprise AI. The company raised over $150 million in funding, primarily from Andreessen Horowitz.
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