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Kakao's Internal Hackathon '10K' Cuts AI-Assisted Development Time from 24 Hours to 10 Hours

·2025.07.31 00:00

Key point

Three backend developers won by completing a Chrome extension in 10 hours using vibe coding.

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Details

Kakao's internal hackathon rebranded from 24K to 10K, reducing the development time to introduce an AI-based development culture. Participants utilized AI assistance throughout the entire process, from planning and MVP implementation to presentations.

The winning team, 'What Is This?', consisted of three backend developers who built the Chrome extension 'Super AI Sales Management Helper' using Python and JavaScript, languages they did not typically work with. By leveraging ChatGPT and the AI coding tool Cursor, they reduced a task that would normally take over six months to just 10 hours.

In this hackathon, AI models from Google and OpenAI handled the first round of judging, evaluating code completeness and UX. The winning team described AI not as a replacement for developers, but as an 'excellent colleague' that helps them focus on ideation and design.

productivityaihackathonchatgptcursorvibe-codingsoftware-developmentkakaoai-developmentinterview
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