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{
  "schema": "albedo-gen-dpo-summary-v1",
  "counts": {
    "pairing_rejected:fewer_than_four_turns": 78,
    "pairing_rejected:first_group_mismatch": 2433,
    "pairs:dev": 1188,
    "pairs:king_version:122": 927,
    "pairs:king_version:123": 1706,
    "pairs:king_version:124": 1693,
    "pairs:king_version:125": 2679,
    "pairs:king_version:126": 2609,
    "pairs:king_version:127": 2636,
    "pairs:preference:challenger": 5769,
    "pairs:preference:king": 6236,
    "pairs:preference:tie": 245,
    "pairs:question_mode:None": 49,
    "pairs:question_mode:milestone_ladder": 8868,
    "pairs:question_mode:sota_anchored": 3333,
    "pairs:train": 11062,
    "rollout_unusable:challenger": 524,
    "rollout_unusable:king": 525,
    "sample_dropped:context_seen_in_newer_run": 21,
    "sample_dropped:no_eligible_pairing": 421,
    "sample_dropped:no_usable_rollout": 285,
    "sample_dropped:rollout_contexts_differ": 213,
    "sample_dropped:task_in_eval_batch": 453,
    "samples:dev": 7083,
    "samples:dropped_no_supervised_turn": 156,
    "samples:k1": 12250,
    "samples:k2": 12250,
    "samples:k3": 12250,
    "samples:k4": 12246,
    "samples:k5": 12191,
    "samples:k6": 11935,
    "samples:train": 66039,
    "samples_seen": 15476,
    "skipped_truncated_artifact_line": 1
  },
  "pairs": 12250,
  "samples": 73122,
  "tie_share_of_pairs": 0.02,
  "runs_used": 155,
  "finished_at_range": [
    "2026-09-04T13:35:54.633426+00:00",
    "2026-09-23T02:22:12.392116+00:00"
  ],
  "selection": {
    "run_order": "newest first; one pair per exact context (the newest run wins)",
    "pairing": "best score gap among the 4 King x challenger rollout pairings that pass the filters; one side is always King, the other challenger",
    "filters": [
      "both rollouts scored",
      ">= 4 assistant turns per side",
      "4-6 equal behaviour groups",
      "first behaviour group matches",
      "winner not flagged amputated_thinking",
      "task not in local eval batch"
    ],
    "tie_share": 0.02,
    "label": "production three-vote score of each rollout on the run's checklist"
  },
  "loss_contract": {
    "assistant_tokens_of_the_final_group_only": true,
    "earlier_groups_are_unsupervised_context": true,
    "observations_are_context": true,
    "harness_text_and_empty_turns": "loss false"
  },
  "think_contract": {
    "content": "exact generation after '<|im_start|>assistant\\n<think>\\n'",
    "render": "'<|im_start|>assistant\\n<think>\\n' + content + '<|im_end|>' verbatim; never through the chat template",
    "think_closed": "false for turns that never closed the think block"
  }
}