{
  "layer": 26,
  "target": "same_input",
  "recipe": "full_corpus_sequence_pass_v1",
  "block_scale_dtype": "fp16",
  "batch_tokens": 262144,
  "sequence_order_sha256": "5e0ef183802009d0483fe37a60f5acd49dd99218130e0c952f097fa473d863bf",
  "training_sequence_count": 14657,
  "training_passes": 0.5240171180844249,
  "training_tokens_seen": 7864320,
  "adaptive_schedule": {
    "best": 0.012252411564001522,
    "drop_after": 20,
    "relative_worsening": 0.001,
    "checks": 3,
    "patience_updates": 10,
    "bad_checks": 3,
    "last_best": 5,
    "early_drop": true
  },
  "refinement": null,
  "lr_decay_after": 25,
  "lr_decay_factor": 0.25,
  "export_only": false,
  "training_output_export": "fixed validation/audit outputs only; full training trajectory export not performed",
  "codebook_lr": 0.048,
  "scale_lr": 0.032,
  "quantized_movement": {
    "codebook_changed": 0,
    "codebook_values": 1368064,
    "scales_changed": 49065247,
    "scale_values": 49250304
  },
  "initial_validation": {
    "target_rel": 0.012783481058390809,
    "reference_rel": 0.038301196689175344,
    "boundary_rel": 0.06994662934899737,
    "bulk_rel": 0.012773334459074578,
    "boundary_rows": 24,
    "windows": [
      {
        "first_row": 8192,
        "rows": 1024,
        "reference_sse": 1777.61767578125,
        "reference_energy": 1190675.0
      },
      {
        "first_row": 9216,
        "rows": 1024,
        "reference_sse": 1109.75830078125,
        "reference_energy": 597185.25
      },
      {
        "first_row": 20480,
        "rows": 1024,
        "reference_sse": 1490.153564453125,
        "reference_energy": 1178691.25
      },
      {
        "first_row": 21504,
        "rows": 1024,
        "reference_sse": 1229.556396484375,
        "reference_energy": 554037.9375
      },
      {
        "first_row": 32768,
        "rows": 1024,
        "reference_sse": 1146.9334716796875,
        "reference_energy": 1174963.0
      },
      {
        "first_row": 33792,
        "rows": 1024,
        "reference_sse": 1125.8037109375,
        "reference_energy": 555998.125
      },
      {
        "first_row": 45056,
        "rows": 1024,
        "reference_sse": 1340.0020751953125,
        "reference_energy": 1190407.5
      },
      {
        "first_row": 46080,
        "rows": 1024,
        "reference_sse": 1708.8704833984375,
        "reference_energy": 1161915.0
      },
      {
        "first_row": 57344,
        "rows": 1024,
        "reference_sse": 1980.33837890625,
        "reference_energy": 1188104.375
      },
      {
        "first_row": 58368,
        "rows": 1024,
        "reference_sse": 1181.565673828125,
        "reference_energy": 1195522.0
      },
      {
        "first_row": 69632,
        "rows": 1024,
        "reference_sse": 1227.889404296875,
        "reference_energy": 1169070.25
      },
      {
        "first_row": 70656,
        "rows": 1024,
        "reference_sse": 1231.262939453125,
        "reference_energy": 597931.125
      },
      {
        "first_row": 81920,
        "rows": 1024,
        "reference_sse": 1491.142333984375,
        "reference_energy": 1169695.75
      },
      {
        "first_row": 82944,
        "rows": 1024,
        "reference_sse": 1359.90185546875,
        "reference_energy": 594001.9375
      },
      {
        "first_row": 94208,
        "rows": 1024,
        "reference_sse": 1353.775146484375,
        "reference_energy": 1166311.875
      },
      {
        "first_row": 95232,
        "rows": 1024,
        "reference_sse": 1679.7998046875,
        "reference_energy": 608367.3125
      }
    ]
  },
  "final_validation": {
    "target_rel": 0.012252411564001522,
    "reference_rel": 0.038148816562206755,
    "boundary_rel": 0.0682675541810929,
    "bulk_rel": 0.01224231462408648,
    "boundary_rows": 24,
    "windows": [
      {
        "first_row": 8192,
        "rows": 1024,
        "reference_sse": 1762.001953125,
        "reference_energy": 1190675.0
      },
      {
        "first_row": 9216,
        "rows": 1024,
        "reference_sse": 1103.4095458984375,
        "reference_energy": 597185.25
      },
      {
        "first_row": 20480,
        "rows": 1024,
        "reference_sse": 1482.8597412109375,
        "reference_energy": 1178691.25
      },
      {
        "first_row": 21504,
        "rows": 1024,
        "reference_sse": 1220.5521240234375,
        "reference_energy": 554037.9375
      },
      {
        "first_row": 32768,
        "rows": 1024,
        "reference_sse": 1137.5797119140625,
        "reference_energy": 1174963.0
      },
      {
        "first_row": 33792,
        "rows": 1024,
        "reference_sse": 1117.51953125,
        "reference_energy": 555998.125
      },
      {
        "first_row": 45056,
        "rows": 1024,
        "reference_sse": 1329.448486328125,
        "reference_energy": 1190407.5
      },
      {
        "first_row": 46080,
        "rows": 1024,
        "reference_sse": 1702.5989990234375,
        "reference_energy": 1161915.0
      },
      {
        "first_row": 57344,
        "rows": 1024,
        "reference_sse": 1973.073974609375,
        "reference_energy": 1188104.375
      },
      {
        "first_row": 58368,
        "rows": 1024,
        "reference_sse": 1165.41162109375,
        "reference_energy": 1195522.0
      },
      {
        "first_row": 69632,
        "rows": 1024,
        "reference_sse": 1205.8603515625,
        "reference_energy": 1169070.25
      },
      {
        "first_row": 70656,
        "rows": 1024,
        "reference_sse": 1221.010498046875,
        "reference_energy": 597931.125
      },
      {
        "first_row": 81920,
        "rows": 1024,
        "reference_sse": 1479.3216552734375,
        "reference_energy": 1169695.75
      },
      {
        "first_row": 82944,
        "rows": 1024,
        "reference_sse": 1348.4732666015625,
        "reference_energy": 594001.9375
      },
      {
        "first_row": 94208,
        "rows": 1024,
        "reference_sse": 1343.669921875,
        "reference_energy": 1166311.875
      },
      {
        "first_row": 95232,
        "rows": 1024,
        "reference_sse": 1663.426025390625,
        "reference_energy": 608367.3125
      }
    ]
  },
  "initial_reasoning_validation": null,
  "final_reasoning_validation": null,
  "validation_distribution": "reasoning only",
  "serialized_validation": {
    "target_rel": 0.012252411564001522,
    "reference_rel": 0.038148816562206755
  },
  "development_audit": {
    "target_rel": 0.020483247154073694,
    "reference_rel": 0.07189722711967783,
    "boundary_rel": 0.0949000050409368,
    "bulk_rel": 0.020476934488309263,
    "boundary_rows": 10,
    "windows": [
      {
        "first_row": 10240,
        "rows": 1024,
        "reference_sse": 5245.9892578125,
        "reference_energy": 1155545.5
      },
      {
        "first_row": 11264,
        "rows": 1024,
        "reference_sse": 5914.73046875,
        "reference_energy": 1198906.75
      },
      {
        "first_row": 22528,
        "rows": 1024,
        "reference_sse": 6046.53466796875,
        "reference_energy": 617403.875
      },
      {
        "first_row": 23552,
        "rows": 1024,
        "reference_sse": 4960.064453125,
        "reference_energy": 605122.125
      },
      {
        "first_row": 34816,
        "rows": 1024,
        "reference_sse": 3690.55712890625,
        "reference_energy": 1197451.125
      },
      {
        "first_row": 35840,
        "rows": 1024,
        "reference_sse": 4344.04296875,
        "reference_energy": 1203314.5
      },
      {
        "first_row": 47104,
        "rows": 1024,
        "reference_sse": 5231.62646484375,
        "reference_energy": 590916.9375
      },
      {
        "first_row": 48128,
        "rows": 1024,
        "reference_sse": 5048.34375,
        "reference_energy": 602847.6875
      },
      {
        "first_row": 59392,
        "rows": 1024,
        "reference_sse": 4689.90673828125,
        "reference_energy": 1170469.25
      },
      {
        "first_row": 60416,
        "rows": 1024,
        "reference_sse": 5621.42431640625,
        "reference_energy": 1178963.5
      },
      {
        "first_row": 71680,
        "rows": 1024,
        "reference_sse": 5560.20068359375,
        "reference_energy": 1199038.5
      },
      {
        "first_row": 72704,
        "rows": 1024,
        "reference_sse": 5639.64990234375,
        "reference_energy": 1200341.75
      },
      {
        "first_row": 83968,
        "rows": 1024,
        "reference_sse": 4987.70703125,
        "reference_energy": 1179587.25
      },
      {
        "first_row": 84992,
        "rows": 1024,
        "reference_sse": 3860.3916015625,
        "reference_energy": 592446.25
      },
      {
        "first_row": 96256,
        "rows": 1024,
        "reference_sse": 4407.794921875,
        "reference_energy": 597897.625
      },
      {
        "first_row": 97280,
        "rows": 1024,
        "reference_sse": 4820.2275390625,
        "reference_energy": 1199381.625
      }
    ]
  },
  "initial_development_audit": {
    "target_rel": 0.02084809103281046,
    "reference_rel": 0.07210509506239011,
    "boundary_rel": 0.0967622656117873,
    "bulk_rel": 0.020841641773144064,
    "boundary_rows": 10,
    "windows": [
      {
        "first_row": 10240,
        "rows": 1024,
        "reference_sse": 5275.03515625,
        "reference_energy": 1155545.5
      },
      {
        "first_row": 11264,
        "rows": 1024,
        "reference_sse": 5958.25634765625,
        "reference_energy": 1198906.75
      },
      {
        "first_row": 22528,
        "rows": 1024,
        "reference_sse": 6076.0908203125,
        "reference_energy": 617403.875
      },
      {
        "first_row": 23552,
        "rows": 1024,
        "reference_sse": 4982.8125,
        "reference_energy": 605122.125
      },
      {
        "first_row": 34816,
        "rows": 1024,
        "reference_sse": 3725.604736328125,
        "reference_energy": 1197451.125
      },
      {
        "first_row": 35840,
        "rows": 1024,
        "reference_sse": 4376.4384765625,
        "reference_energy": 1203314.5
      },
      {
        "first_row": 47104,
        "rows": 1024,
        "reference_sse": 5262.31591796875,
        "reference_energy": 590916.9375
      },
      {
        "first_row": 48128,
        "rows": 1024,
        "reference_sse": 5065.2080078125,
        "reference_energy": 602847.6875
      },
      {
        "first_row": 59392,
        "rows": 1024,
        "reference_sse": 4720.236328125,
        "reference_energy": 1170469.25
      },
      {
        "first_row": 60416,
        "rows": 1024,
        "reference_sse": 5654.8271484375,
        "reference_energy": 1178963.5
      },
      {
        "first_row": 71680,
        "rows": 1024,
        "reference_sse": 5600.7783203125,
        "reference_energy": 1199038.5
      },
      {
        "first_row": 72704,
        "rows": 1024,
        "reference_sse": 5666.90380859375,
        "reference_energy": 1200341.75
      },
      {
        "first_row": 83968,
        "rows": 1024,
        "reference_sse": 5009.70751953125,
        "reference_energy": 1179587.25
      },
      {
        "first_row": 84992,
        "rows": 1024,
        "reference_sse": 3879.4931640625,
        "reference_energy": 592446.25
      },
      {
        "first_row": 96256,
        "rows": 1024,
        "reference_sse": 4437.7236328125,
        "reference_energy": 597897.625
      },
      {
        "first_row": 97280,
        "rows": 1024,
        "reference_sse": 4841.41845703125,
        "reference_energy": 1199381.625
      }
    ]
  },
  "best_step": 5,
  "steps_run": 30,
  "history": [
    {
      "step": 5,
      "validation": {
        "target_rel": 0.012252411564001522,
        "reference_rel": 0.038148816562206755,
        "boundary_rel": 0.0682675541810929,
        "bulk_rel": 0.01224231462408648,
        "boundary_rows": 24
      },
      "reasoning_validation": null,
      "training_probe_rel": 0.5277409744187996,
      "batch_loss": 0.2925359457731247,
      "best_step": 5,
      "overfit_checks": 0,
      "seconds": 49.495508670806885,
      "adaptive_schedule": {
        "best": 0.012252411564001522,
        "drop_after": 25,
        "relative_worsening": 0.001,
        "checks": 3,
        "patience_updates": 10,
        "bad_checks": 0,
        "last_best": 5,
        "early_drop": false
      },
      "adaptive_stop": false,
      "quantized_movement": {
        "codebook_changed": 0,
        "codebook_values": 1368064,
        "scales_changed": 49065247,
        "scale_values": 49250304
      }
    },
    {
      "step": 10,
      "validation": {
        "target_rel": 0.012617305755639194,
        "reference_rel": 0.038230805366560885,
        "boundary_rel": 0.06997725668619602,
        "bulk_rel": 0.01260700684338352,
        "boundary_rows": 24
      },
      "reasoning_validation": null,
      "training_probe_rel": 0.5429296622233902,
      "batch_loss": 0.2930539399385452,
      "best_step": 5,
      "overfit_checks": 0,
      "seconds": 118.16434454917908,
      "adaptive_schedule": {
        "best": 0.012252411564001522,
        "drop_after": 25,
        "relative_worsening": 0.001,
        "checks": 3,
        "patience_updates": 10,
        "bad_checks": 1,
        "last_best": 5,
        "early_drop": false
      },
      "adaptive_stop": false,
      "quantized_movement": {
        "codebook_changed": 53651,
        "codebook_values": 1368064,
        "scales_changed": 49095173,
        "scale_values": 49250304
      }
    },
    {
      "step": 15,
      "validation": {
        "target_rel": 0.012584215608586552,
        "reference_rel": 0.038238449720854696,
        "boundary_rel": 0.06976113883361774,
        "bulk_rel": 0.012573953471505797,
        "boundary_rows": 24
      },
      "reasoning_validation": null,
      "training_probe_rel": 0.5409803651961634,
      "batch_loss": 0.299679197371006,
      "best_step": 5,
      "overfit_checks": 0,
      "seconds": 162.87658071517944,
      "adaptive_schedule": {
        "best": 0.012252411564001522,
        "drop_after": 25,
        "relative_worsening": 0.001,
        "checks": 3,
        "patience_updates": 10,
        "bad_checks": 2,
        "last_best": 5,
        "early_drop": false
      },
      "adaptive_stop": false,
      "quantized_movement": {
        "codebook_changed": 44770,
        "codebook_values": 1368064,
        "scales_changed": 49116542,
        "scale_values": 49250304
      }
    },
    {
      "step": 20,
      "validation": {
        "target_rel": 0.012562151810959547,
        "reference_rel": 0.03822868547414307,
        "boundary_rel": 0.06976362703465748,
        "bulk_rel": 0.012551869746531635,
        "boundary_rows": 24
      },
      "reasoning_validation": null,
      "training_probe_rel": 0.5405559927443112,
      "batch_loss": 0.29230009764432907,
      "best_step": 5,
      "overfit_checks": 0,
      "seconds": 236.12234234809875,
      "adaptive_schedule": {
        "best": 0.012252411564001522,
        "drop_after": 20,
        "relative_worsening": 0.001,
        "checks": 3,
        "patience_updates": 10,
        "bad_checks": 3,
        "last_best": 5,
        "early_drop": true
      },
      "adaptive_stop": false,
      "quantized_movement": {
        "codebook_changed": 46167,
        "codebook_values": 1368064,
        "scales_changed": 49128327,
        "scale_values": 49250304
      }
    },
    {
      "step": 25,
      "validation": {
        "target_rel": 0.012347192361241545,
        "reference_rel": 0.038154902799073846,
        "boundary_rel": 0.06862403960475454,
        "bulk_rel": 0.012337069822677751,
        "boundary_rows": 24
      },
      "reasoning_validation": null,
      "training_probe_rel": 0.5318165913630406,
      "batch_loss": 0.28477901965379715,
      "best_step": 5,
      "overfit_checks": 0,
      "seconds": 287.49289083480835,
      "adaptive_schedule": {
        "best": 0.012252411564001522,
        "drop_after": 20,
        "relative_worsening": 0.001,
        "checks": 3,
        "patience_updates": 10,
        "bad_checks": 3,
        "last_best": 5,
        "early_drop": true
      },
      "adaptive_stop": false,
      "quantized_movement": {
        "codebook_changed": 21382,
        "codebook_values": 1368064,
        "scales_changed": 49129528,
        "scale_values": 49250304
      }
    },
    {
      "step": 30,
      "validation": {
        "target_rel": 0.012409142843116375,
        "reference_rel": 0.03818235004236018,
        "boundary_rel": 0.06888799537515408,
        "bulk_rel": 0.012398993873004466,
        "boundary_rows": 24
      },
      "reasoning_validation": null,
      "training_probe_rel": 0.5335390713063419,
      "batch_loss": 0.2677588686347008,
      "best_step": 5,
      "overfit_checks": 0,
      "seconds": 360.25011444091797,
      "adaptive_schedule": {
        "best": 0.012252411564001522,
        "drop_after": 20,
        "relative_worsening": 0.001,
        "checks": 3,
        "patience_updates": 10,
        "bad_checks": 3,
        "last_best": 5,
        "early_drop": true
      },
      "adaptive_stop": true,
      "quantized_movement": {
        "codebook_changed": 30515,
        "codebook_values": 1368064,
        "scales_changed": 49130090,
        "scale_values": 49250304
      }
    }
  ],
  "index_reassignments": [
    {
      "method": "expert_parallel_output_gradient_prefix_backtracking_v1",
      "proposals": 332,
      "accepted": 299,
      "changed_groups": 169193,
      "training_before": 1380.1943359375,
      "training_after": 1359.115478515625,
      "acceptance": "proposal and separate training check batches",
      "step": 10
    },
    {
      "method": "expert_parallel_output_gradient_prefix_backtracking_v1",
      "proposals": 334,
      "accepted": 286,
      "changed_groups": 197745,
      "training_before": 1423.542236328125,
      "training_after": 1403.205078125,
      "acceptance": "proposal and separate training check batches",
      "step": 20
    },
    {
      "method": "expert_parallel_output_gradient_prefix_backtracking_v1",
      "proposals": 332,
      "accepted": 280,
      "changed_groups": 109264,
      "training_before": 1292.516845703125,
      "training_after": 1271.4091796875,
      "acceptance": "proposal and separate training check batches",
      "step": 30
    }
  ],
  "coverage_threshold": 256,
  "checkpoint_selection": "held-out original reference trajectory for both arms",
  "world_size": 8,
  "microbatch": 65536,
  "proposal_communication": "sparse routed rows",
  "parallelism": "expert-sharded coupled output",
  "arithmetic": "fp4_planes4_fp16_boundaries_v1",
  "scope": "text-only, cached prompt partitions; historical audit is development only",
  "train_rows": 15007754,
  "validation_rows": 16384,
  "audit_rows": 16384,
  "complete": true
}