{
  "schema_version": 1,
  "date": "2026-07-12",
  "hardware": {
    "gpu": "NVIDIA GeForce RTX 5060 Ti",
    "compute_capability": "SM120",
    "user_batch_size": 1
  },
  "software": {
    "python": "3.12",
    "torch": "2.7.1+cu128",
    "torch_cuda": "12.8",
    "flashinfer": "0.6.14",
    "nvidia_cutlass_dsl": "4.5.2"
  },
  "natural_eight_text_suite": {
    "definition": "Pipeline and T3 seconds are sums of per-case medians; aggregate RTF is summed pipeline time divided by summed generated-audio duration; T3 throughput uses valid speech tokens; memory is maximum per-case median PyTorch CUDA peak.",
    "d16_quality": {
      "bf16": {
        "audio_seconds": 98.64,
        "pipeline_seconds": 9.304738,
        "aggregate_rtf": 0.0943303,
        "t3_seconds": 7.512483,
        "valid_tokens": 2466,
        "t3_tokens_per_second": 328.254,
        "peak_allocated_bytes": 6423756800,
        "peak_reserved_bytes": 7107248128
      },
      "nvfp4_w4a16": {
        "audio_seconds": 92.52,
        "pipeline_seconds": 8.072466,
        "aggregate_rtf": 0.087251,
        "t3_seconds": 6.330483,
        "valid_tokens": 2313,
        "t3_tokens_per_second": 365.375,
        "peak_allocated_bytes": 5214659584,
        "peak_reserved_bytes": 6322913280
      },
      "nvfp4_vs_bf16": {
        "aggregate_rtf_speedup": 1.081136,
        "t3_throughput_speedup": 1.113087,
        "peak_allocated_reduction_bytes": 1209097216,
        "peak_allocated_reduction_percent": 18.8223,
        "peak_reserved_reduction_bytes": 784334848,
        "peak_reserved_reduction_percent": 11.0357
      }
    },
    "d24_fast": {
      "bf16": {
        "audio_seconds": 93.36,
        "pipeline_seconds": 6.797084,
        "aggregate_rtf": 0.0728051,
        "t3_seconds": 5.04703,
        "valid_tokens": 2334,
        "t3_tokens_per_second": 462.45,
        "peak_allocated_bytes": 6539530752,
        "peak_reserved_bytes": 7411335168
      },
      "nvfp4_w4a16": {
        "audio_seconds": 91.8,
        "pipeline_seconds": 6.483264,
        "aggregate_rtf": 0.0706238,
        "t3_seconds": 4.748782,
        "valid_tokens": 2295,
        "t3_tokens_per_second": 483.282,
        "peak_allocated_bytes": 5129031168,
        "peak_reserved_bytes": 6064963584
      },
      "nvfp4_vs_bf16": {
        "aggregate_rtf_speedup": 1.030886,
        "t3_throughput_speedup": 1.045046,
        "peak_allocated_reduction_bytes": 1410499584,
        "peak_allocated_reduction_percent": 21.5688,
        "peak_reserved_reduction_bytes": 1346371584,
        "peak_reserved_reduction_percent": 18.1664
      }
    }
  },
  "fixed_capped_work": {
    "definition": "One fixed-seed case, five-repeat medians, 1024-token reservation. D16 caps at 32 speech tokens; D24 caps at 48, so compare quantized and BF16 only within each block size.",
    "d16": {
      "bf16_t3_ms": 88.363,
      "nvfp4_t3_ms": 78.475,
      "t3_speedup": 1.125998,
      "bf16_pipeline_ms": 162.897,
      "nvfp4_pipeline_ms": 153.235,
      "pipeline_speedup": 1.063052,
      "bf16_peak_allocated_bytes": 4165647360,
      "nvfp4_peak_allocated_bytes": 2745680896,
      "peak_allocated_reduction_percent": 34.0875,
      "peak_reserved_reduction_percent": 30.0444
    },
    "d24": {
      "bf16_t3_ms": 91.192,
      "nvfp4_t3_ms": 85.574,
      "t3_speedup": 1.065645,
      "bf16_pipeline_ms": 180.938,
      "nvfp4_pipeline_ms": 176.006,
      "pipeline_speedup": 1.028023,
      "bf16_peak_allocated_bytes": 4173167104,
      "nvfp4_peak_allocated_bytes": 2754244096,
      "peak_allocated_reduction_percent": 34.0011,
      "peak_reserved_reduction_percent": 30.0689
    }
  },
  "automated_quality": {
    "warning": "Small eight-text, one-reference automated evaluation; not human MOS or a multi-speaker benchmark.",
    "d16": {
      "bf16_mean_score": 94.125,
      "nvfp4_mean_score": 94.625,
      "exact_transcripts_each": "8/8",
      "hard_failures_each": "0/8",
      "order_controlled_pairwise": "7 ties, 1 BF16 win"
    },
    "d24": {
      "bf16_mean_score": 95.0,
      "nvfp4_mean_score": 93.125,
      "exact_transcripts_each": "8/8",
      "hard_failures_each": "0/8",
      "order_controlled_pairwise": "6 ties, 1 BF16 win, 1 NVFP4 win"
    }
  },
  "source_free_load_diagnostic": {
    "fresh_process_load_seconds_with_base_hash_verification_and_jit_cache_hit": 2.675073,
    "allocated_bytes_after_load": 1444340224,
    "reserved_bytes_after_load": 1478492160,
    "prepared_projection_bytes": 283116000,
    "prepared_projection_count": 120,
    "short_generation_peak_allocated_bytes": 2548431360,
    "first_same_process_generation_seconds_with_exact_shape_config_cache": 10.567298,
    "second_same_process_generation_seconds": 0.153511,
    "first_to_warm_ratio": 68.8376,
    "notes": "Canonical weights were prepared without BF16 projection materialization or nvfp4_quantize. The first-generation measurement includes engine creation, CUDA graph capture, and per-process FlashInfer setup even though the exact shape's selected config was cached. A completely missing exact-shape tuning entry can take longer. Caches are GPU-specific and are intentionally not distributed."
  },
  "interpretation_warnings": [
    "Do not present raw natural-suite wall-time ratios as pure NVFP4 speedups because BF16 and NVFP4 sampled different token counts.",
    "PyTorch allocated/reserved peaks are not total board VRAM or nvidia-smi process usage.",
    "The D24 versus D16 speed difference is primarily the block-size change, not quantization alone.",
    "The D16 BF16 natural control had one token-cap hit and one duration warning; NVFP4 did not.",
    "D32 was rejected for release use after cap hits and an OOM in the natural suite."
  ]
}