Xiaohongshu Open-Sources Relax, Reinforcement Learning Engine for Multimodal AI Training

Gate News message, April 15 — Xiaohongshu’s AI platform team officially open-sourced Relax, a reinforcement learning training engine designed for multimodal and agentic scenarios.

Relax supports unified processing and flexible integration of image, audio, and video inputs. The engine combines modality-aware parallelism with end-to-end asynchronous pipelining to enhance multimodal training efficiency and scalability.

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