During May 2025, Binh Pham Huu Thanh focused on improving GPU test reliability in the ROCm/jax repository by addressing numerical stability issues in Python-based test suites. He adjusted the reference threshold in the testEighTinyNorm function to better accommodate reduced float32 precision on ROCm GPUs and certain CUDA versions, which previously caused false failures for near-zero matrices. This targeted fix enhanced cross-platform validation and reduced spurious CI failures, supporting more robust and efficient GPU-accelerated math path testing. His work demonstrated depth in GPU computing, numerical stability, and testing, resulting in smoother continuous integration and faster iteration for the development team.