Qwen-Scope: Official Sparse Autoencoders (SAEs) for Qwen 3.5 models

Qwen Team released **Qwen-Scope** — a collection of Sparse Autoencoders (SAEs) for the Qwen 3.5 family (from 2B to 35B MoE). They’ve mapped internal features for the residual stream across all layers. **What is this exactly?** Think of it as a dictionary of the model's internal concepts. Instead of