Saved in:
| Main Authors: | , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2508.07970 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866918126374879232 |
|---|---|
| author | Wu, Junyu Chang, Weiming Liu, Xiaotao He, Guanyou Xian, Tingfeng Hong, Haoqiang Chen, Boqi Tian, Hongtao Yang, Tao Shi, Yunsheng Lin, Feng Yao, Ting Xu, Jiatao |
| author_facet | Wu, Junyu Chang, Weiming Liu, Xiaotao He, Guanyou Xian, Tingfeng Hong, Haoqiang Chen, Boqi Tian, Hongtao Yang, Tao Shi, Yunsheng Lin, Feng Yao, Ting Xu, Jiatao |
| contents | Reinforcement Learning from Human Feedback (RLHF) has emerged as a prominent paradigm for training large language models and multimodal systems. Despite the notable advances enabled by existing RLHF training frameworks, significant challenges remain to scale to complex multimodal workflows and adapt to dynamic workloads. In particular, current systems often encounter limitations related to controller scalability when managing large models, as well as inefficiencies in orchestrating intricate RLHF pipelines, especially in scenarios that require dynamic sampling and resource allocation. In this paper, we introduce WeChat-YATT Yet Another Transformer Trainer in WeChat, a simple, scalable, and balanced RLHF training framework specifically designed to address these challenges. WeChat-YATT features a parallel controller programming model that enables flexible and efficient orchestration of complex RLHF workflows, effectively mitigating bottlenecks associated with centralized controller architectures and facilitating scalability in large-scale data scenarios. In addition, we propose a dynamic placement schema that adaptively partitions computational resources and schedules workloads, thereby significantly reducing hardware idle time and improving GPU utilization under variable training conditions. We evaluate WeChat-YATT across diverse experimental scenarios, demonstrating its substantial throughput improvements over state-of-the-art RLHF training frameworks. Furthermore, WeChat-YATT has been successfully deployed to train models that support WeChat product features for a large-scale user base, underscoring its effectiveness and robustness in real-world applications. We have made WeChat-YATT publicly available at https://www.github.com/tencent/WeChat-YATT. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_07970 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | WeChat-YATT: A Scalable, Simple, Efficient, and Production Ready Training Library Wu, Junyu Chang, Weiming Liu, Xiaotao He, Guanyou Xian, Tingfeng Hong, Haoqiang Chen, Boqi Tian, Hongtao Yang, Tao Shi, Yunsheng Lin, Feng Yao, Ting Xu, Jiatao Machine Learning Artificial Intelligence Reinforcement Learning from Human Feedback (RLHF) has emerged as a prominent paradigm for training large language models and multimodal systems. Despite the notable advances enabled by existing RLHF training frameworks, significant challenges remain to scale to complex multimodal workflows and adapt to dynamic workloads. In particular, current systems often encounter limitations related to controller scalability when managing large models, as well as inefficiencies in orchestrating intricate RLHF pipelines, especially in scenarios that require dynamic sampling and resource allocation. In this paper, we introduce WeChat-YATT Yet Another Transformer Trainer in WeChat, a simple, scalable, and balanced RLHF training framework specifically designed to address these challenges. WeChat-YATT features a parallel controller programming model that enables flexible and efficient orchestration of complex RLHF workflows, effectively mitigating bottlenecks associated with centralized controller architectures and facilitating scalability in large-scale data scenarios. In addition, we propose a dynamic placement schema that adaptively partitions computational resources and schedules workloads, thereby significantly reducing hardware idle time and improving GPU utilization under variable training conditions. We evaluate WeChat-YATT across diverse experimental scenarios, demonstrating its substantial throughput improvements over state-of-the-art RLHF training frameworks. Furthermore, WeChat-YATT has been successfully deployed to train models that support WeChat product features for a large-scale user base, underscoring its effectiveness and robustness in real-world applications. We have made WeChat-YATT publicly available at https://www.github.com/tencent/WeChat-YATT. |
| title | WeChat-YATT: A Scalable, Simple, Efficient, and Production Ready Training Library |
| topic | Machine Learning Artificial Intelligence |
| url | https://arxiv.org/abs/2508.07970 |