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25-Year-Old Launches GTA-Style Game with Claude Max AI

6/15/2026

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Summary

Story summary

Ziwen Xu, 25-year-old founder of Hyperecho, launched a GTA VI-style game using Claude Max AI on Day 1.
He upgraded to Claude Max 20x, wrote the code within hours, and committed it to a repository.
On Day 2 the AI generated a human-like character but placed downtown Los Angeles skyscrapers instead of Florida.
Xu said 33% of his weekly 20x usage occurred in a single day.
The prototype now features NPCs, cars and

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Story summary

Ziwen Xu, 25-year-old founder of Hyperecho, launched a GTA VI-style game using Claude Max AI on Day 1.
He upgraded to Claude Max 20x, wrote the code within hours, and committed it to a repository.
On Day 2 the AI generated a human-like character but placed downtown Los Angeles skyscrapers instead of Florida.
Xu said 33% of his weekly 20x usage occurred in a single day.
The prototype now features NPCs, cars and