WILDCHAT-50M: A Deep Dive Into The Role Of Synthetic Data In Post-training | Awesome LLM Papers Add your paper to Awesome LLM Papers

Awesome LLM Papers

A continuously updated collection of research papers on LLMs.

Stay Updated

Contact Sean Moran about this survey or website. Made with Jekyll and Hyde.

WILDCHAT-50M: A Deep Dive Into The Role Of Synthetic Data In Post-training

Benjamin Feuer, Chinmay Hegde . No Venue 2025

[Code] [Paper]   Search on Google Scholar   Search on Semantic Scholar
Datasets Efficiency Fine Tuning Has Code Model Architecture Reinforcement Learning Training Techniques

Language model (LLM) post-training, from DPO to distillation, can refine behaviors and unlock new skills, but the open science supporting these post-training techniques is still in its infancy. One limiting factor has been the difficulty of conducting large-scale comparative analyses of synthetic data generating models and LLM judges. To close this gap, we introduce WILDCHAT-50M, the largest public chat dataset to date. We extend the existing WildChat dataset to include responses not only from GPT, but from over 50 different open-weight models, ranging in size from 0.5B to 104B parameters. We conduct an extensive comparative analysis and demonstrate the potential of this dataset by creating RE-WILD, our own public SFT mix, which outperforms the recent Tulu-3 SFT mixture from Allen AI with only 40% as many samples. Our dataset, samples and code are available at https://github.com/penfever/wildchat-50m.

Similar Work