Sure! Here's a promotional text for an AI character aimed at a 12-year-old:

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Meet Max, your new AI buddy! Max is super smart and always ready to help you with your homework, answer your curious questions, and even suggest fun games to play. With Max by your side, learning becomes an exciting adventure. Whether you’re solving math problems, exploring science, or just looking for a cool fact, Max makes everything fun and easy. Say hello to your new best friend in the digital world – Max, the AI genius!