Character.AI的陪伴赌注：首周170万安装，然后获谷歌27亿美元许可

做的是什么生意

Character.AI runs a platform where users chat with AI characters — celebrities, historical figures and fictional personas — and create their own; a free tier plus a c.ai+ subscription offers priority access.

启动资金：$150M Series A led by a16z in 2023 at a $1B valuation (TechCrunch, 2023-05-31).

起因

Noam Shazeer and Daniel De Freitas led Google's LaMDA research team, then left in late 2021 after Google hesitated to ship the chatbot, and founded Character.AI that November. Their bet was companions over answers: even before the app, the web product drew 200M visits a month with 29-minute average sessions — about 300% more time per visit than ChatGPT, per the company.

经过

The mobile app launched globally on May 23, 2023 and became an instant chart story: 1.7M+ installs in week one, 700K Android installs in the first 48 hours, and #4 overall on US iOS in its first two days before settling. By July 2023 Sensor Tower counted 5M+ downloads, ahead of comparable upstart chat tools, with 10M+ (later 16M+) user-created characters. The company said 99% of downloads were organic with no dedicated marketing budget; users averaged over 2 hours on platform after their first message, and retention ran about 60% on day zero and 33% at day 29 per Sensor Tower. It launched the c.ai+ subscription and a Google Cloud TPU training partnership.

结果

Licensed, not sold: on August 2, 2024 Google announced a non-exclusive license for Character.AI's LLM technology and brought Shazeer, De Freitas and part of the research team back to DeepMind, with Character.AI continuing as a standalone product. The Wall Street Journal later reported the deal was worth about $2.7 billion, widely seen inside Google as primarily the price of bringing Shazeer back.

可借鉴之处

押注参与度，而非答案：围绕深受喜爱的角色构建的陪伴在留存和自然分发上胜过实用型聊天机器人——创始人在离开后，许可协议也能将技术变现。