{
  "version": 2.5,
  "config": {
    "preset": "deberta_v3_base_en",
    "sequence_length": 512,
    "dropout": 0.08
  },
  "weights_file": "ielts_v2.5_base_en_10ep.weights.h5",
  "calibration_file": "ielts_v2.5_base_en_10ep_calibration.pkl",
  "bias_correction_offsets": [0.0, 0.0, 0.0, 0.0],
  "serving": {
    "variant": "augmented_calibrated",
    "input_format": "essay_only",
    "calibration_enabled": true,
    "hf_repo": "koecheup/evalguide-ielts-v2.5"
  },
  "_note": "Production v2.5: augmented retrain + isotonic calibration. Weights are gitignored; download from HF or train locally. Rollback: set weights_file to ielts_v2.4_base_en_10ep.weights.h5 and version 2.4."
}