AI 说从公开信息找，找不到。

Conclusion

Based on the publicly available contest result data for 2024 and the accessible medal listing for USAPhO 2024:

There is currently no publicly verifiable evidence of a student who
? earned USACO Gold in 2024 or 2025 and
? earned a USAPhO Silver medal in 2024 or 2025.

This doesn’t prove that no such student exists (because not all USACO Gold results are published in full lists), but with the names available publicly, there is no overlapping name.