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        "estimator": "equal-weight mean of session means; session bootstrap",
        "mean": 190.60172355566667,
        "samples": 6,
        "session_means": {
          "1": 193.2542421045,
          "2": 191.110317208,
          "3": 187.4406113545
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        "sessions": 3
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      "current_prefill_tokens_per_second": {
        "bootstrap_resamples": 10000,
        "ci95": [
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          360.8953835883113
        ],
        "estimator": "equal-weight mean of session means; session bootstrap",
        "mean": 359.0268388180901,
        "samples": 6,
        "session_means": {
          "1": 360.8953835883113,
          "2": 356.3520908671966,
          "3": 359.8330419987624
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        "sessions": 3
      },
      "control_prefill_tokens_per_second": {
        "bootstrap_resamples": 10000,
        "ci95": [
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          174.99544296539895
        ],
        "estimator": "equal-weight mean of session means; session bootstrap",
        "mean": 172.11815780028965,
        "samples": 6,
        "session_means": {
          "1": 169.85643422934328,
          "2": 171.50259620612675,
          "3": 174.99544296539895
        },
        "sessions": 3
      },
      "current_over_control_rate_ratio": 2.0859323816065496,
      "max_abs_logit_error": 0.0,
      "top1_agreement": true
    }
  ],
  "cell_outcomes": [
    {
      "model_id": "Qwen/Qwen3.5-4B",
      "chunk_size": 2048,
      "boundary_policy": "cache_only_intermediate",
      "status": "matched_complete",
      "current_states": {
        "completed": 3
      },
      "control_states": {
        "completed": 3
      }
    },
    {
      "model_id": "Qwen/Qwen3.5-4B",
      "chunk_size": 2048,
      "boundary_policy": "last_logits_and_cache_each_chunk",
      "status": "matched_complete",
      "current_states": {
        "completed": 6
      },
      "control_states": {
        "completed": 6
      }
    },
    {
      "model_id": "Qwen/Qwen3.5-4B",
      "chunk_size": 4096,
      "boundary_policy": "last_logits_and_cache_each_chunk",
      "status": "matched_complete",
      "current_states": {
        "completed": 6
      },
      "control_states": {
        "completed": 6
      }
    },
    {
      "model_id": "Qwen/Qwen3.5-4B",
      "chunk_size": 8192,
      "boundary_policy": "last_logits_and_cache_each_chunk",
      "status": "matched_complete",
      "current_states": {
        "completed": 6
      },
      "control_states": {
        "completed": 6
      }
    },
    {
      "model_id": "Qwen/Qwen3.5-4B",
      "chunk_size": 16384,
      "boundary_policy": "last_logits_and_cache_each_chunk",
      "status": "retained_terminal_outcome",
      "current_states": {
        "failed": 6
      },
      "control_states": {
        "failed": 6
      }
    },
    {
      "model_id": "Qwen/Qwen3.5-4B",
      "chunk_size": 32768,
      "boundary_policy": "cache_only_intermediate",
      "status": "retained_terminal_outcome",
      "current_states": {
        "failed": 3
      },
      "control_states": {
        "failed": 3
      }
    },
    {
      "model_id": "Qwen/Qwen3.5-4B",
      "chunk_size": 32768,
      "boundary_policy": "last_logits_and_cache_each_chunk",
      "status": "retained_terminal_outcome",
      "current_states": {
        "failed": 6
      },
      "control_states": {
        "failed": 6
      }
    },
    {
      "model_id": "openbmb/MiniCPM5-2B",
      "chunk_size": 2048,
      "boundary_policy": "cache_only_intermediate",
      "status": "matched_complete",
      "current_states": {
        "completed": 3
      },
      "control_states": {
        "completed": 3
      }
    },
    {
      "model_id": "openbmb/MiniCPM5-2B",
      "chunk_size": 2048,
      "boundary_policy": "last_logits_and_cache_each_chunk",
      "status": "matched_complete",
      "current_states": {
        "completed": 6
      },
      "control_states": {
        "completed": 6
      }
    },
    {
      "model_id": "openbmb/MiniCPM5-2B",
      "chunk_size": 4096,
      "boundary_policy": "last_logits_and_cache_each_chunk",
      "status": "matched_complete",
      "current_states": {
        "completed": 6
      },
      "control_states": {
        "completed": 6
      }
    },
    {
      "model_id": "openbmb/MiniCPM5-2B",
      "chunk_size": 8192,
      "boundary_policy": "last_logits_and_cache_each_chunk",
      "status": "matched_complete",
      "current_states": {
        "completed": 6
      },
      "control_states": {
        "completed": 6
      }
    },
    {
      "model_id": "openbmb/MiniCPM5-2B",
      "chunk_size": 16384,
      "boundary_policy": "last_logits_and_cache_each_chunk",
      "status": "matched_complete",
      "current_states": {
        "completed": 6
      },
      "control_states": {
        "completed": 6
      }
    },
    {
      "model_id": "openbmb/MiniCPM5-2B",
      "chunk_size": 32768,
      "boundary_policy": "cache_only_intermediate",
      "status": "matched_complete",
      "current_states": {
        "completed": 3
      },
      "control_states": {
        "completed": 3
      }
    },
    {
      "model_id": "openbmb/MiniCPM5-2B",
      "chunk_size": 32768,
      "boundary_policy": "last_logits_and_cache_each_chunk",
      "status": "matched_complete",
      "current_states": {
        "completed": 6
      },
      "control_states": {
        "completed": 6
      }
    }
  ],
  "capacity_note": "Qwen 16K/32K chunks requested single 32/64 GiB buffers exceeding Metal's 20,100,448,256-byte per-buffer limit on both machines. A 32K prompt completed with smaller chunks.",
  "scope": "Primary policy: last_logits_and_cache_each_chunk. Diagnostic endpoints: cache_only_intermediate. Three sessions; two measured repetitions per primary cell and one per diagnostic cell per session. Separate from C01; original figure data unchanged."
}