Mid-trained (text) checkpoint of OSim (OdysSim) at the 4B scale: Qwen3-4B-Base midtrained on the OdysSim corpus (62 behavioral datasets across the five Soul axes). 4B sibling of the post-trained cmu-lti/osim-4b-post; text counterpart pattern of cmu-lti/osim-8b-mid.

Training

Base: Qwen3-4B-Base
Stage: midtraining (SFT) on the OdysSim corpus.

Citation

Cite the OdysSim paper (Building Foundation Models for Human Behavior Simulation). Code: https://github.com/sunnweiwei/OdysSim

cmu-lti/osim-4b-mid

OSim-4B (mid-trained, text)

Training

Citation

cmu-lti/
osim-4b-mid