{
  "layer": 42,
  "target": "same_input",
  "recipe": "full_corpus_sequence_pass_v1",
  "block_scale_dtype": "fp16",
  "residual_scale_shift": 0,
  "batch_tokens": 262144,
  "sequence_order_sha256": "5e0ef183802009d0483fe37a60f5acd49dd99218130e0c952f097fa473d863bf",
  "training_sequence_count": 14657,
  "training_passes": 0.5240171180844249,
  "training_tokens_seen": 7864320,
  "adaptive_schedule": {
    "best": 0.04590353936917018,
    "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": 1433600,
    "scales_changed": 51343525,
    "scale_values": 51609600
  },
  "initial_validation": {
    "target_rel": 0.047515433677179066,
    "reference_rel": 0.2207177427250077,
    "boundary_rel": 0.089484635482186,
    "bulk_rel": 0.04749789201305864,
    "boundary_rows": 24,
    "windows": [
      {
        "first_row": 8192,
        "rows": 1024,
        "reference_sse": 101057.640625,
        "reference_energy": 3766280.0
      },
      {
        "first_row": 9216,
        "rows": 1024,
        "reference_sse": 110180.75,
        "reference_energy": 2314931.5
      },
      {
        "first_row": 20480,
        "rows": 1024,
        "reference_sse": 109354.9765625,
        "reference_energy": 3774183.0
      },
      {
        "first_row": 21504,
        "rows": 1024,
        "reference_sse": 129747.046875,
        "reference_energy": 2050081.0
      },
      {
        "first_row": 32768,
        "rows": 1024,
        "reference_sse": 272425.4375,
        "reference_energy": 3741326.75
      },
      {
        "first_row": 33792,
        "rows": 1024,
        "reference_sse": 234944.5625,
        "reference_energy": 2108721.0
      },
      {
        "first_row": 45056,
        "rows": 1024,
        "reference_sse": 329029.1875,
        "reference_energy": 3739440.5
      },
      {
        "first_row": 46080,
        "rows": 1024,
        "reference_sse": 104960.8203125,
        "reference_energy": 3653244.75
      },
      {
        "first_row": 57344,
        "rows": 1024,
        "reference_sse": 323046.34375,
        "reference_energy": 3791388.0
      },
      {
        "first_row": 58368,
        "rows": 1024,
        "reference_sse": 95219.5546875,
        "reference_energy": 3794201.0
      },
      {
        "first_row": 69632,
        "rows": 1024,
        "reference_sse": 107975.109375,
        "reference_energy": 3635494.0
      },
      {
        "first_row": 70656,
        "rows": 1024,
        "reference_sse": 109429.234375,
        "reference_energy": 2243064.0
      },
      {
        "first_row": 81920,
        "rows": 1024,
        "reference_sse": 121233.6171875,
        "reference_energy": 3712797.0
      },
      {
        "first_row": 82944,
        "rows": 1024,
        "reference_sse": 117840.3125,
        "reference_energy": 2233862.5
      },
      {
        "first_row": 94208,
        "rows": 1024,
        "reference_sse": 111680.703125,
        "reference_energy": 3599377.25
      },
      {
        "first_row": 95232,
        "rows": 1024,
        "reference_sse": 75834.171875,
        "reference_energy": 2214036.75
      }
    ]
  },
  "final_validation": {
    "target_rel": 0.04590353936917018,
    "reference_rel": 0.22075621587293756,
    "boundary_rel": 0.08732879125508795,
    "bulk_rel": 0.045886110157659095,
    "boundary_rows": 24,
    "windows": [
      {
        "first_row": 8192,
        "rows": 1024,
        "reference_sse": 100983.71875,
        "reference_energy": 3766280.0
      },
      {
        "first_row": 9216,
        "rows": 1024,
        "reference_sse": 110244.984375,
        "reference_energy": 2314931.5
      },
      {
        "first_row": 20480,
        "rows": 1024,
        "reference_sse": 109468.5703125,
        "reference_energy": 3774183.0
      },
      {
        "first_row": 21504,
        "rows": 1024,
        "reference_sse": 129991.2734375,
        "reference_energy": 2050081.0
      },
      {
        "first_row": 32768,
        "rows": 1024,
        "reference_sse": 272319.6875,
        "reference_energy": 3741326.75
      },
      {
        "first_row": 33792,
        "rows": 1024,
        "reference_sse": 235162.265625,
        "reference_energy": 2108721.0
      },
      {
        "first_row": 45056,
        "rows": 1024,
        "reference_sse": 329026.9375,
        "reference_energy": 3739440.5
      },
      {
        "first_row": 46080,
        "rows": 1024,
        "reference_sse": 104956.8359375,
        "reference_energy": 3653244.75
      },
      {
        "first_row": 57344,
        "rows": 1024,
        "reference_sse": 322988.9375,
        "reference_energy": 3791388.0
      },
      {
        "first_row": 58368,
        "rows": 1024,
        "reference_sse": 95139.625,
        "reference_energy": 3794201.0
      },
      {
        "first_row": 69632,
        "rows": 1024,
        "reference_sse": 108084.453125,
        "reference_energy": 3635494.0
      },
      {
        "first_row": 70656,
        "rows": 1024,
        "reference_sse": 109741.140625,
        "reference_energy": 2243064.0
      },
      {
        "first_row": 81920,
        "rows": 1024,
        "reference_sse": 121288.0,
        "reference_energy": 3712797.0
      },
      {
        "first_row": 82944,
        "rows": 1024,
        "reference_sse": 118018.515625,
        "reference_energy": 2233862.5
      },
      {
        "first_row": 94208,
        "rows": 1024,
        "reference_sse": 111716.125,
        "reference_energy": 3599377.25
      },
      {
        "first_row": 95232,
        "rows": 1024,
        "reference_sse": 75683.96875,
        "reference_energy": 2214036.75
      }
    ]
  },
  "initial_reasoning_validation": null,
  "final_reasoning_validation": null,
  "validation_distribution": "reasoning only",
  "serialized_validation": {
    "target_rel": 0.04590353936917018,
    "reference_rel": 0.22075621587293756
  },
  "development_audit": {
    "target_rel": 0.05781530167256599,
    "reference_rel": 0.26751062824039346,
    "boundary_rel": 0.06683445509451742,
    "bulk_rel": 0.057814270753533493,
    "boundary_rows": 10,
    "windows": [
      {
        "first_row": 10240,
        "rows": 1024,
        "reference_sse": 170881.3125,
        "reference_energy": 3549774.5
      },
      {
        "first_row": 11264,
        "rows": 1024,
        "reference_sse": 223424.75,
        "reference_energy": 3663334.5
      },
      {
        "first_row": 22528,
        "rows": 1024,
        "reference_sse": 321754.0625,
        "reference_energy": 2285642.25
      },
      {
        "first_row": 23552,
        "rows": 1024,
        "reference_sse": 211988.15625,
        "reference_energy": 2104095.75
      },
      {
        "first_row": 34816,
        "rows": 1024,
        "reference_sse": 172724.53125,
        "reference_energy": 3930374.5
      },
      {
        "first_row": 35840,
        "rows": 1024,
        "reference_sse": 170295.875,
        "reference_energy": 3886099.0
      },
      {
        "first_row": 47104,
        "rows": 1024,
        "reference_sse": 167062.40625,
        "reference_energy": 2217593.25
      },
      {
        "first_row": 48128,
        "rows": 1024,
        "reference_sse": 321210.03125,
        "reference_energy": 2116973.0
      },
      {
        "first_row": 59392,
        "rows": 1024,
        "reference_sse": 199433.109375,
        "reference_energy": 3677882.0
      },
      {
        "first_row": 60416,
        "rows": 1024,
        "reference_sse": 199636.578125,
        "reference_energy": 3540451.75
      },
      {
        "first_row": 71680,
        "rows": 1024,
        "reference_sse": 186002.59375,
        "reference_energy": 3781023.5
      },
      {
        "first_row": 72704,
        "rows": 1024,
        "reference_sse": 244944.140625,
        "reference_energy": 3617479.5
      },
      {
        "first_row": 83968,
        "rows": 1024,
        "reference_sse": 223941.5625,
        "reference_energy": 3569926.0
      },
      {
        "first_row": 84992,
        "rows": 1024,
        "reference_sse": 288541.25,
        "reference_energy": 2044036.25
      },
      {
        "first_row": 96256,
        "rows": 1024,
        "reference_sse": 241412.625,
        "reference_energy": 2101850.25
      },
      {
        "first_row": 97280,
        "rows": 1024,
        "reference_sse": 218419.96875,
        "reference_energy": 3683958.5
      }
    ]
  },
  "initial_development_audit": {
    "target_rel": 0.05869821414056228,
    "reference_rel": 0.2674707944895521,
    "boundary_rel": 0.06766111548285939,
    "bulk_rel": 0.058697190767015656,
    "boundary_rows": 10,
    "windows": [
      {
        "first_row": 10240,
        "rows": 1024,
        "reference_sse": 170814.015625,
        "reference_energy": 3549774.5
      },
      {
        "first_row": 11264,
        "rows": 1024,
        "reference_sse": 223235.359375,
        "reference_energy": 3663334.5
      },
      {
        "first_row": 22528,
        "rows": 1024,
        "reference_sse": 321965.9375,
        "reference_energy": 2285642.25
      },
      {
        "first_row": 23552,
        "rows": 1024,
        "reference_sse": 211802.59375,
        "reference_energy": 2104095.75
      },
      {
        "first_row": 34816,
        "rows": 1024,
        "reference_sse": 173305.359375,
        "reference_energy": 3930374.5
      },
      {
        "first_row": 35840,
        "rows": 1024,
        "reference_sse": 170696.328125,
        "reference_energy": 3886099.0
      },
      {
        "first_row": 47104,
        "rows": 1024,
        "reference_sse": 167332.53125,
        "reference_energy": 2217593.25
      },
      {
        "first_row": 48128,
        "rows": 1024,
        "reference_sse": 320959.0625,
        "reference_energy": 2116973.0
      },
      {
        "first_row": 59392,
        "rows": 1024,
        "reference_sse": 199394.8125,
        "reference_energy": 3677882.0
      },
      {
        "first_row": 60416,
        "rows": 1024,
        "reference_sse": 199313.8125,
        "reference_energy": 3540451.75
      },
      {
        "first_row": 71680,
        "rows": 1024,
        "reference_sse": 186052.328125,
        "reference_energy": 3781023.5
      },
      {
        "first_row": 72704,
        "rows": 1024,
        "reference_sse": 244727.5,
        "reference_energy": 3617479.5
      },
      {
        "first_row": 83968,
        "rows": 1024,
        "reference_sse": 223690.75,
        "reference_energy": 3569926.0
      },
      {
        "first_row": 84992,
        "rows": 1024,
        "reference_sse": 288012.1875,
        "reference_energy": 2044036.25
      },
      {
        "first_row": 96256,
        "rows": 1024,
        "reference_sse": 241142.96875,
        "reference_energy": 2101850.25
      },
      {
        "first_row": 97280,
        "rows": 1024,
        "reference_sse": 218166.78125,
        "reference_energy": 3683958.5
      }
    ]
  },
  "best_step": 5,
  "steps_run": 30,
  "history": [
    {
      "step": 5,
      "validation": {
        "target_rel": 0.04590353936917018,
        "reference_rel": 0.22075621587293756,
        "boundary_rel": 0.08732879125508795,
        "bulk_rel": 0.045886110157659095,
        "boundary_rows": 24
      },
      "reasoning_validation": null,
      "training_probe_rel": 0.6065372781305912,
      "batch_loss": 0.34432588517665863,
      "best_step": 5,
      "overfit_checks": 0,
      "seconds": 53.03889203071594,
      "adaptive_schedule": {
        "best": 0.04590353936917018,
        "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": 1433600,
        "scales_changed": 51343525,
        "scale_values": 51609600
      }
    },
    {
      "step": 10,
      "validation": {
        "target_rel": 0.04740060609810215,
        "reference_rel": 0.22069708777601035,
        "boundary_rel": 0.08964191510690858,
        "bulk_rel": 0.04738290277296384,
        "boundary_rows": 24
      },
      "reasoning_validation": null,
      "training_probe_rel": 0.6189625700905755,
      "batch_loss": 0.3742435872554779,
      "best_step": 5,
      "overfit_checks": 0,
      "seconds": 132.58086967468262,
      "adaptive_schedule": {
        "best": 0.04590353936917018,
        "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": 55350,
        "codebook_values": 1433600,
        "scales_changed": 51406965,
        "scale_values": 51609600
      }
    },
    {
      "step": 15,
      "validation": {
        "target_rel": 0.04719307978060746,
        "reference_rel": 0.2209022177824244,
        "boundary_rel": 0.08929428665199292,
        "bulk_rel": 0.04717542943553145,
        "boundary_rows": 24
      },
      "reasoning_validation": null,
      "training_probe_rel": 0.6181378123269401,
      "batch_loss": 0.3448950946331024,
      "best_step": 5,
      "overfit_checks": 0,
      "seconds": 181.7358067035675,
      "adaptive_schedule": {
        "best": 0.04590353936917018,
        "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": 42668,
        "codebook_values": 1433600,
        "scales_changed": 51438803,
        "scale_values": 51609600
      }
    },
    {
      "step": 20,
      "validation": {
        "target_rel": 0.04703873356062386,
        "reference_rel": 0.22082809901926517,
        "boundary_rel": 0.08872282689011517,
        "bulk_rel": 0.04702129340941752,
        "boundary_rows": 24
      },
      "reasoning_validation": null,
      "training_probe_rel": 0.6189991337736565,
      "batch_loss": 0.3531951680779457,
      "best_step": 5,
      "overfit_checks": 0,
      "seconds": 261.953408241272,
      "adaptive_schedule": {
        "best": 0.04590353936917018,
        "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": 42340,
        "codebook_values": 1433600,
        "scales_changed": 51455368,
        "scale_values": 51609600
      }
    },
    {
      "step": 25,
      "validation": {
        "target_rel": 0.046457631856919895,
        "reference_rel": 0.22069837029008957,
        "boundary_rel": 0.08826590243235033,
        "bulk_rel": 0.046440056832326666,
        "boundary_rows": 24
      },
      "reasoning_validation": null,
      "training_probe_rel": 0.6131847811651628,
      "batch_loss": 0.35885603725910187,
      "best_step": 5,
      "overfit_checks": 0,
      "seconds": 318.75955724716187,
      "adaptive_schedule": {
        "best": 0.04590353936917018,
        "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": 22197,
        "codebook_values": 1433600,
        "scales_changed": 51457402,
        "scale_values": 51609600
      }
    },
    {
      "step": 30,
      "validation": {
        "target_rel": 0.04664168184108649,
        "reference_rel": 0.2207840218475311,
        "boundary_rel": 0.0884427676895922,
        "bulk_rel": 0.046624132536478534,
        "boundary_rows": 24
      },
      "reasoning_validation": null,
      "training_probe_rel": 0.6147627652060244,
      "batch_loss": 0.33846016973257065,
      "best_step": 5,
      "overfit_checks": 0,
      "seconds": 389.4001667499542,
      "adaptive_schedule": {
        "best": 0.04590353936917018,
        "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": 31580,
        "codebook_values": 1433600,
        "scales_changed": 51457873,
        "scale_values": 51609600
      }
    }
  ],
  "index_reassignments": [
    {
      "method": "expert_parallel_output_gradient_prefix_backtracking_v1",
      "proposals": 342,
      "accepted": 306,
      "changed_groups": 408214,
      "training_before": 44632.9453125,
      "training_after": 43961.0625,
      "acceptance": "proposal and separate training check batches",
      "step": 10
    },
    {
      "method": "expert_parallel_output_gradient_prefix_backtracking_v1",
      "proposals": 342,
      "accepted": 278,
      "changed_groups": 290212,
      "training_before": 41829.3984375,
      "training_after": 41300.47265625,
      "acceptance": "proposal and separate training check batches",
      "step": 20
    },
    {
      "method": "expert_parallel_output_gradient_prefix_backtracking_v1",
      "proposals": 338,
      "accepted": 295,
      "changed_groups": 321468,
      "training_before": 39266.1875,
      "training_after": 38835.078125,
      "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
}