Machine Heart

Oct 29, 2026 · Artificial Intelligence

DiffusionART: 10x Faster Video Diffusion RL via Aggregation-First Reward Tilting

NUS and Kling AI researchers introduce DiffusionART, an online diffusion RL algorithm that eliminates forward-reverse consistency forces and uses a two-update scheme with trust-region masking to achieve 10-12x faster convergence than DiffusionNFT and Flow-GRPO-Fast on HunyuanVideo-13B, while supporting pairwise rewards with tiny group sizes.