@jason_chen998: Speaking of companies that got killed by AI, we have to mention Zuoyebang and Yuanfudao. Remember a few years ago when these two companies flooded the market with ads for their "black tech" of taking photos to search homework? For homework you couldn't solve, just snap a photo and upload it to the app, and you'd get the answer quickly. With the development of AI, these two companies have been swept away by the tide of the times, but you might be curious...

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Summary

A look back at how Zuoyebang and Yuanfudao initially built their question bank moat through human-powered answering, and how AI development impacted them.

Speaking of companies that got killed by AI, we have to mention Zuoyebang and Yuanfudao. Remember a few years ago when these two companies flooded the market with ads for their "black tech" of taking photos to search homework? For homework you couldn't solve, just snap a photo and upload it to the app, and you'd get the answer quickly. With the development of AI, these two companies have been swept away by the tide of the times, but you might have also wondered: in those years when AI wasn't around, how did photo-based homework search actually work? The answer is: brute force. No intelligence, all manual. In 2018, Zuoyebang founder Hou Jianbin proudly said that relying on Baidu's resources and over 20,000 part-time teachers, they had collected and answered hundreds of millions of questions, and this question bank was the company's biggest moat. And Yuanfudao, starting from 2013, recruited college students and collected massive amounts of test papers and textbooks, paying 5 yuan per answer. According to reports, when the K12 track was booming a few years ago, Zuoyebang and Yuanfudao raised billions of dollars in total, nearly half of which was invested in building the question bank—essentially paying college students and teachers to answer questions. At that time, both companies were like in an arms race, frantically collecting questions and paying people to answer them, convinced that this was their strongest moat. Until one day, AI arrived...
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