I tell my Argentinian pal that I've been using ChatGPT to practise my Spanish and, excitedly, I explain what it can do. It can correct my errors, I tell him, and it's able to give me regional ...

Founded by former Thiel fellows, AI language tutoring app Speak started its journey in Seoul, South Korea. But as it enters the U.S. market, it’ll have to compete with better-known rivals like ...