FreeToken : An LLM Engine to max the bandwidth of All-The-Things

FreeToken, an LLM engine designed to maximize bandwidth across all hardware, faces a fundamental challenge: bit-exact reproducibility is impossible across different CPU and GPU architectures due to differing floating-point arithmetic paths. The source notes that even identical software environments will produce different results on Intel versus AMD CPUs or on CUDA SM86, SM89, and SM120 GPUs, reflecting trade-offs between performance and precision. To validate cross-device consistency, the source suggests capturing logits as reference and testing them across hardware with different floating-point accumulators and matrix-multiplication extensions.