Machine Heart

Apr 16, 2026 · Artificial Intelligence

Achieving 4.6× Faster Diffusion Model Training with FP4‑BF16 Dual‑Track Parallelism (Sol‑RL)

Sol‑RL, a framework from NVIDIA, Hong Kong University and MIT, integrates NVFP4 inference for large‑scale rollout exploration and BF16 precision for high‑fidelity regeneration, delivering up to 4.64× faster convergence at equivalent reward levels while preserving BF16 training fidelity across SANA, FLUX.1 and SD3.5‑L models.