{
  "architecture": "DFC",
  "model_a": "chengq9/ToolRL-Qwen2.5-3B",
  "model_b": "Qwen/Qwen2.5-3B",
  "layer": 13,
  "activation_dim": 2048,
  "dict_size": 8192,
  "k": 90,
  "model_a_exclusive_pct": 0.10,
  "model_b_exclusive_pct": 0.10,
  "steps": 9000,
  "lr": 1e-4,
  "train_batch": 1024,
  "sparsity_coef": 1e-3,
  "exclusive_sparsity_coef": 0,
  "loss": "MSE + L1 on shared features only (coef: 1e-3); exclusive features unpenalized",
  "wandb_project": "dfc-crosscoder-sweep",
  "trained_at": "2026-03-30T05:03:28+00:00"
}