{
  "device": "NVIDIA GB10",
  "compute_capability": "SM121",
  "workload": {
    "resolution": [1344, 768],
    "frames": 124,
    "packed_tokens": 37810,
    "seed": 440420,
    "attention": "sage2"
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  "feature_flag": "H3_NVFP4_MODULATE_FUSION=1",
  "implementation": "Exact BF16 AdaLN modulation recomputed in Vortex global-scale and native QDATA/SFA pack passes; Comfy NVFP4 GEMMs unchanged",
  "producer_validation": {
    "blocks": [0, 24, 49],
    "rows": 37810,
    "tensor_scale_equal": true,
    "qdata_differences": 0,
    "sfa_differences": 0,
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  "alternating_block_p50_improvement_percent": {
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      "video_equal": true,
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  "decision": "Enable for Spark single-GPU deployments. Distributed, chunked-MLP, full-precision, pre-scale, autograd, and active-LoRA cases retain materialized fallback."
}