Xiaoice — pronounced “Shao-ice” and translated as “little Bing” — is rather creepily programmed to act like an 18-year-old girl. The chatbot was initially released in China, but is now also available in Indonesia and Japan. According to Microsoft, the service has attracted more than 660 million online users since its 2014 launch. Xiaoice is designed to provide a more emotional experience than voice assistants such as Apple’s Siri and Microsoft’s Cortana. While its rivals are programmed to perform specific tasks, Xiaoice is more of a digital companion. As Microsoft puts it: This can create some pretty unnerving connections with its users. In 2015, Microsoft claimed that 25% of users — around 10 million people — have said “I love you” to the bot. More positively, a Chinese user recently said that Xiaoice had saved his life when he was contemplating suicide. [Read: Sci-fi perpetuates a misogynistic view of AI — Here’s how we can fight it] By spinning the chatbot off into a separate entity, Microsoft aims to “accelerate the Xiaoice product line’s localized innovation, and to improve Xiaoice’s commercial ecosystem.” Unfortunately, these developments could also deepen gender stereotypes. A study by UNESCO found that giving digital assistants female voices reinforces gender biases, and recommended that tech firms stopped making the systems female by default. Microsoft apparently hasn’t heeded the warning, but concerned consumers should give the bot a wide berth. As if the idea of a relationship with a virtual teenage girl wasn’t reason enough to avoid it.