Hy4 Preview builds complex Three.js temple in 87 minutes
ShunyuYao12 · x · 2026-08-28
A user demo highlights the capabilities of Hy4 Preview, showing it spent 1 hour and 27 minutes thinking, building, and verifying a Pagoda Temple in Three.js.
The model reportedly features 49B active parameters and represents a significant jump over Hy3, boasting better planning and execution. This underscores the intensifying race in model performance for complex, long-horizon coding tasks.
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