Two 0 developers, Vitalik Marincenko and Shreyansh Pandey, won second place at ETHTokyo 2025 with their project Prompt Piper, a tool designed to make AI more cost-efficient and socially 1 success builds on a growing culture of professionalized hackathons across the crypto 2 Hackathon Guide to Hackathon Winner: 3 Duo Triumph in Tokyo
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