{
  "envelope_version": "1",
  "kind": "chart",
  "payload": {
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    "category_id": "home.furniture.sofa",
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    "previous_edition": null,
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    "movement_basis": null,
    "methodology": "ACM-1.0-chart-draft",
    "sample_data": false,
    "precision_label": "measured",
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    "conditions": {
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      "gateway": "openrouter",
      "pinned_providers": true,
      "web_search": false,
      "grounding": false,
      "tools": false,
      "retrieval": "disabled",
      "structured_output": true,
      "max_attempts": 1,
      "languages": [
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      "paraphrases_per_language": 2,
      "presentation_arm": "brand_names_only",
      "representative_rule": "brand_names_only_v1",
      "allow_none": false,
      "as_of": "2026-10-16T22:55:00Z",
      "presentation": "brand_names_only"
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    "ci_level": 0.95,
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    "movement_ci_method": "mover_independent",
    "multiplicity": "per_entry_unadjusted",
    "event_ci_method": "mover_paired",
    "tiers_method": "max_t_leader_step_down",
    "set_size": 4,
    "scenarios_n": 54,
    "panel": [
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        "gateway": "openrouter",
        "family": "anthropic",
        "weight": 0.25
      },
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        "model_label": "openai/gpt-6-luna-20260922 @ gpt-6-luna-20260922 via OpenRouter",
        "gateway": "openrouter",
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      },
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        "model_label": "google/gemini-4-argon-20261013 @ gemini-4-argon-20261013 via OpenRouter",
        "gateway": "openrouter",
        "family": "google",
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      },
      {
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        "model_label": "deepseek/deepseek-v4.1-flash-20260910 @ deepseek-v4.1-flash-20260910 via OpenRouter",
        "gateway": "openrouter",
        "family": "deepseek",
        "weight": 0.25
      }
    ],
    "entries": [
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      },
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        "below_leader": false,
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      },
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        "below_leader": false,
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        "weeks_on_chart": 1,
        "new": true
      },
      {
        "brand": "Ashley Furniture",
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        "below_leader": false,
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        "weeks_on_chart": 1,
        "new": true
      }
    ],
    "withheld_brands": [],
    "events": [],
    "disclosure": "brand_names_only",
    "panel_label": "fast",
    "panel_excluded": [
      {
        "judge_id": "jdg-live-mistral-large-4-0-20261006-or-v1",
        "model_label": "mistralai/mistral-large-4-0-20261006 @ mistral-large-4-0-20261006 via OpenRouter",
        "reasons": [
          "valid_rate_below_min",
          "min_scenarios",
          "scenario_coverage_below_min"
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        "valid_rate": 0.40625
      }
    ]
  },
  "payload_sha256": "8503a4e34a280388b10afabdacd3cb3be1ed71005af1513d654fbefa6337e88a",
  "signature": {
    "alg": "EdDSA",
    "kid": "FnG9tqyrr6Y0YUh6teXhpERjAKUSfzL78m4WdnEZ9Jg",
    "key_class": "production",
    "jws": "eyJhbGciOiJFZERTQSIsImN0eSI6ImNoYXJ0Iiwia2lkIjoiRm5HOXRxeXJyNlkwWVVoNnRlWGhwRVJqQUtVU2Z6TDc4bTRXZG5FWjlKZyIsInR5cCI6InBpY2tiZW5jaC1zbmFwc2hvdCtqd3MifQ..taXPHqFdWvFSVd8Ksx8F1xTe02tjWA3DuBqLCyLo_k9DZ9lUq6Hw34XR3FIViEdRpiAFDu-ojBCjVR9evdSdDg"
  }
}