{ "prompt": "An overhead editorial photograph of an oceanographer's desk: a coiled orange rope, silver calipers, a pale-blue sea chart with fine contour lines, a black-and-white photograph of a lighthouse, a few tiny shells and a weathered brass compass. On a pale notecard write 'NORTH STAR' in neat bold navy capitals. One shaft of late afternoon sunlight, precise paper fibers and metal scratches, realistic soft shadows, a carefully balanced square composition.", "seed": 802, "size": [ 4096, 4096 ], "canvas": [ 4096, 4096 ], "rng": "torch", "sigmas": [ 1.0, 0.9675236940383911, 0.8875485062599182, 0.75, 0.5327739119529724, 0.23200887441635132, 0.0 ], "steps": [ 0, 1, 2, 3, 4, 5 ], "output": "comparisons/cuda-reference/native-4k.png", "timings": { "total_s": 32.5837 }, "environment": { "device": "RTX 5090", "backend": "SGLang CUDA", "quality": "lossless" }, "source_record": { "label": "single-bf16-stream", "case": "native-4k", "trial": 1, "wall_seconds": 32.5837, "image_bytes": 50339652, "sha256": "7fd381c76d07a3f5a5e3f1982d454d31c56101f9af22c70900aab983e8465bee", "size": "4096x4096", "seed": 802, "task": "text-to-image", "quality": "lossless", "output_compression": 1, "attention_override": null, "h3_opt": null, "prompt": "An overhead editorial photograph of an oceanographer's desk: a coiled orange rope, silver calipers, a pale-blue sea chart with fine contour lines, a black-and-white photograph of a lighthouse, a few tiny shells and a weathered brass compass. On a pale notecard write 'NORTH STAR' in neat bold navy capitals. One shaft of late afternoon sunlight, precise paper fibers and metal scratches, realistic soft shadows, a carefully balanced square composition." }, "reference_images": [], "reference_sha256": [], "dit": { "precision": "BF16" }, "vae": { "quality": "lossless" } }