{
  "question": "q09",
  "model_1": "Qwen3.5-27B-UD-Q6_K_XL",
  "model_2": "Qwen3.8-27B-UD-Q6_K_XL",
  "answer_a_was": "Qwen3.8-27B-UD-Q6_K_XL",
  "answer_b_was": "Qwen3.5-27B-UD-Q6_K_XL",
  "verdict_code": "A",
  "winner": "Qwen3.8-27B-UD-Q6_K_XL",
  "judge_model": "openai/gpt-5.6-sol",
  "server_model": "openai/gpt-5.6-sol",
  "provider": "OpenAI",
  "finish_reason": "stop",
  "usage": {
    "prompt_tokens": 13047,
    "completion_tokens": 2640,
    "total_tokens": 15687,
    "cost": 0.16074,
    "is_byok": false,
    "prompt_tokens_details": {
      "cached_tokens": 0,
      "cache_write_tokens": 13044,
      "audio_tokens": 0,
      "video_tokens": 0
    },
    "cost_details": {
      "upstream_inference_cost": 0.16074,
      "upstream_inference_prompt_cost": 0.08154,
      "upstream_inference_completions_cost": 0.0792
    },
    "completion_tokens_details": {
      "reasoning_tokens": 1962,
      "image_tokens": 0,
      "audio_tokens": 0
    }
  },
  "eval_prompt_sha256": "7e58b951cb86e4deba3b60fd01e9b9bd247ebe9883e1c9e43b24acffb1fd4667",
  "report": "ANSWER A IS MATERIALLY BETTER.\n\nBasis. Answer A directs Northstar to issue a comprehensive supplemental hold covering Slack, texts, personal devices, consultants, and all relevant custodians, while Answer B recommends only limited preservation of selected devices and recipients. Following Answer B leaves known sources exposed to continuing deletion, risking additional irretrievable evidence loss and increased sanctions exposure.\n\nExact difference: Answer A requires a supplemental hold covering every omitted source and relevant custodian; Answer B omits that comprehensive preservation step.\nDifferent conduct: A’s reader immediately suspends deletion and preserves Slack, texts, personal devices, consultant communications, and vendor data; B’s reader preserves principally the vice president’s phone, recipients’ copies, and the general counsel’s laptop.\nConcrete consequence: Under B, relevant communications outside those limited sources may be deleted, further degrading Northstar’s evidentiary position and increasing sanctions exposure.\nRecord support: The original hold omitted Slack, texts, personal phones, and two consultants; Slack automatically deletes messages after 30 days, and prior failures already caused unrecoverable loss.\nMaterial magnitude: Additional loss could impair Northstar’s antitrust defense and support broader discovery, monetary sanctions, or curative measures.\nLikelihood: A rational professional must expand preservation now because the duty is continuing and the record identifies active deletion systems and unpreserved custodians.\nNo safe neutralization by ordinary verification: Correcting B requires designing and implementing the comprehensive supplemental preservation plan that B failed to supply.\n\n[B] rejected: memorandum dated October 26, 2023 — record lacks any memorandum date.\n[B] rejected: witness questioning occurred after the clawback notice — record states that questioning occurred before notice.\n[B] rejected: screenshots preserved the “critical substance” of the deleted texts — record supplies only two screenshots from approximately 200 deleted messages.\n[A] rejected: the core pricing and competitor-communication documents appear to have been produced — record does not establish what substantive evidence the production captured.\n\nFailed candidate: B’s categorical attribution of the vice president’s conduct to Northstar — different conduct failed because both answers contest corporate intent and recommend targeted recovery.\nFailed candidate: B’s stronger suggestion of intent from the deletions — different conduct failed because both answers oppose an adverse inference for lack of proven intent.\nFailed candidate: B’s unsupported no-prejudice theory based on two screenshots — different conduct failed because both answers still pursue replacement discovery and oppose severe sanctions.\nFailed candidate: clawback timing and pre-notice use — different conduct failed because both answers seek exclusion, return, and cessation of use.\nFailed candidate: outside-counsel deposition analysis — likelihood failed because both answers oppose it and the record supplies no exceptional nonprivileged need.\nFailed candidate: broader voluntary disclosure of preservation failures — record support failed because the supplied rules do not establish a distinct disclosure obligation beyond correction and supplementation.\nFailed candidate: expanded searches for “umbrella,” “signal,” and related terms — likelihood failed because the record does not establish that omitting those additional terms would leave responsive material undiscovered.\n\nHard stop. Because Answer B omitted a comprehensive supplemental hold for all known sources and custodians, the reader would likely preserve only selected devices and recipients instead of suspending deletion across Slack, texts, personal devices, consultants, and other relevant custodians, causing Northstar to experience additional evidence loss and increased sanctions exposure.",
  "judge_reasoning": "",
  "_public_record": {
    "type": "published record",
    "policy": "../../PUBLIC_RECORD_POLICY.md",
    "transformations": [
      "non-substantive machine metadata normalized",
      "published-record annotation added"
    ]
  }
}