microsoft/UserRepGen-4B

In the model registry

Timeline

1. Oct 15, 2026 · Research paper · 1 source
   Learning User Representations to Improve Simulation Fidelity
   User simulators enable interactive training and evaluation of AI assistants at scale.
2. Oct 14, 2026 · Model release · 1 source
   microsoft/UserRepGen-4B
   microsoft published the model UserRepGen-4B on Hugging Face.

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