{
  "id": "4loop-stage2-direct-500",
  "student_depth": 4,
  "teacher_depth": 32,
  "stage1_updates": 2000,
  "stage2_updates": 500,
  "checkpoint_step": 500,
  "learning_rate": 2e-07,
  "comparison_report": "reports/four_loop_extend_20261009/comparison.json",
  "selection": "predeclared endpoint",
  "evaluation": {
    "questions": 128,
    "final_matches": 32,
    "strict_matches": 26,
    "cap_hits": 3,
    "split": "held-out GSM8K development",
    "generation_cap": 256
  },
  "prefix_policy": "cached teacher32-generated answer prefixes",
  "format": "loop-distil-recurrent-bf16-v1",
  "base_model": "tomg-group-umd/huginn-0125",
  "base_revision": "bb6621b65e90b6a4b9b29ef88dc83866d450470c",
  "weights_sha256": "7b01376b3b178afe77791fff292d5d3eedc2e6d9fbfb75b4d15db56a6d0a73da",
  "source_master_sha256": "1b7549a6766c736ec793dbdf6196146365876765c0388b240782bc6c9dd7725c",
  "tensor_count": 37,
  "parameters": 1637349120,
  "weights_bytes": 3274702592,
  "dtype": "bfloat16",
  "exact_bf16_compute_roundtrip": true,
  "optimizer_included": false,
  "source_checkpoint_filename": "step_0500.pt",
  "note": "Full replacements for adapter/core tensors, not additive deltas or LoRA. Combine with the pinned base. Original FP32 masters and Adam states remain in local recovery checkpoints."
}