{
  "scope": "Two A/B/B/A rounds, same GPU3,6 and checkpoint, native BF16 lossless, no torch.compile. All eight formal samples retained.",
  "model": "black-forest-labs/FLUX.1-dev",
  "checkpoint": "3de623fc3c33e44ffbe2bad470d0f45bccf2eb21",
  "final_commit": "3d51468a54b8fad047b1d679c0968ac2919613e7",
  "measured_candidate": "5e91bc39e7a421be979448661b1b5d93db35cb48",
  "runtime_mapping": "Final head changes only tests/docs relative to measured candidate; runtime/server_args/server_args.py is byte-identical.",
  "environment": {
    "gpus": "2 NVIDIA H200, TP2",
    "torch": "2.13.0+cu130",
    "triton": "3.7.1",
    "driver": "595.71.05",
    "nccl_actual": "2.28.9",
    "resolution": "1024x1024",
    "steps": 50,
    "seed": 42,
    "guidance_scale": 3.5,
    "prompt": "A futuristic cyberpunk city at night, neon lights reflecting on wet streets",
    "component_residency": "dit=resident, others=auto"
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  "timing_definition": "Engine E2E from the unprofiled perf dump, including text encoding, denoise, decode; excludes startup, checkpoint download, warmup, and final PNG writing. Not profiler export wall time.",
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  "high_bcg": "Actually rejected by existing request-gated DiT fusion compatibility check; no high+BCG performance claim."
}