{
  "primary": {
    "berkeley_bfcl": {"Claude": 1, "Qwen": 47},
    "mri001": {"Qwen": 1, "Claude": 28}
  },
  "alternatives": [
    {"formulation": "Full MRI-001 workflow", "winner": "Qwen"},
    {"formulation": "Cost removed", "winner": "GPT-4.1 Prompt"},
    {"formulation": "Latency removed", "winner": "Qwen"},
    {"formulation": "Capability-only", "winner": "GPT-4.1 Prompt"}
  ],
  "center_pull": {
    "work_evidence_first": "Qwen",
    "berkeley_rank_one_shown_first": "Qwen",
    "additional_center_pull": 0,
    "stronger_effect_demonstrated": false
  }
}