Image-2.1-Calibrated-FP8 / optimization /quality-vs-fp8.json
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Accelerate full 40-step FP8 generation with native precision, measured quality and real-time demo
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{
"protocol": "16 disjoint text-to-image prompts plus2 disjoint edits. Matched seeds,40steps,same pipeline and BF16 encoder/VAE. RGB composited over white and resized512 for LPIPS/SSIM/PSNR. Latents compared at full resolution. This is a finite fidelity check, not a broad human preference benchmark.",
"pairs": [
{
"id": "00",
"lpips_alex_512": 0.0006540275062434375,
"ssim_512": 0.9983653564145475,
"psnr_512": 50.45740191583909,
"latent_nrmse": 0.008030623197555542,
"latent_cosine": 0.999891996383667,
"alpha_mae": 0.00022723815020392923
},
{
"id": "01",
"lpips_alex_512": 0.0032667126506567,
"ssim_512": 0.9941584529567485,
"psnr_512": 40.6246243151626,
"latent_nrmse": 0.022569432854652405,
"latent_cosine": 0.9997267723083496,
"alpha_mae": 8.504156972847733e-05
},
{
"id": "02",
"lpips_alex_512": 0.01659783348441124,
"ssim_512": 0.9809412274934068,
"psnr_512": 35.86132382974127,
"latent_nrmse": 0.04317404329776764,
"latent_cosine": 0.9990493059158325,
"alpha_mae": 0.00024381151386335784
},
{
"id": "03",
"lpips_alex_512": 0.005000461358577013,
"ssim_512": 0.9900833520273945,
"psnr_512": 38.8444442873744,
"latent_nrmse": 0.024173730984330177,
"latent_cosine": 0.9996890425682068,
"alpha_mae": 0.00014505947337431065
},
{
"id": "04",
"lpips_alex_512": 0.000704753038007766,
"ssim_512": 0.9979097545027972,
"psnr_512": 47.51767239675964,
"latent_nrmse": 0.011123890988528728,
"latent_cosine": 0.9998582601547241,
"alpha_mae": 3.1303891948625156e-05
},
{
"id": "05",
"lpips_alex_512": 0.008891566656529903,
"ssim_512": 0.9927372745460277,
"psnr_512": 35.948886615374875,
"latent_nrmse": 0.029095789417624474,
"latent_cosine": 0.9995598793029785,
"alpha_mae": 0.00015900555778952205
},
{
"id": "06",
"lpips_alex_512": 0.0013984774705022573,
"ssim_512": 0.9956754928433855,
"psnr_512": 45.45275428180727,
"latent_nrmse": 0.010114307515323162,
"latent_cosine": 0.9999299049377441,
"alpha_mae": 0.00036374260397518385
},
{
"id": "07",
"lpips_alex_512": 0.016953393816947937,
"ssim_512": 0.9791173071202123,
"psnr_512": 36.43153122071263,
"latent_nrmse": 0.04522187262773514,
"latent_cosine": 0.9989587068557739,
"alpha_mae": 3.706614176432292e-05
},
{
"id": "08",
"lpips_alex_512": 0.014839287847280502,
"ssim_512": 0.9915602272992333,
"psnr_512": 32.45296744802643,
"latent_nrmse": 0.03516024351119995,
"latent_cosine": 0.9993060231208801,
"alpha_mae": 5.567775053136489e-06
},
{
"id": "09",
"lpips_alex_512": 0.02529650554060936,
"ssim_512": 0.9808640721341937,
"psnr_512": 34.14858031516565,
"latent_nrmse": 0.05903178080916405,
"latent_cosine": 0.9982385635375977,
"alpha_mae": 4.1288488051470586e-06
},
{
"id": "10",
"lpips_alex_512": 0.00157443608622998,
"ssim_512": 0.996625042145732,
"psnr_512": 40.29209168419813,
"latent_nrmse": 0.012434827163815498,
"latent_cosine": 0.9999027252197266,
"alpha_mae": 0.0015476002412683823
},
{
"id": "11",
"lpips_alex_512": 0.008122559636831284,
"ssim_512": 0.9937619445127668,
"psnr_512": 36.5806762030683,
"latent_nrmse": 0.04052620381116867,
"latent_cosine": 0.999162495136261,
"alpha_mae": 3.919040455537684e-05
},
{
"id": "12",
"lpips_alex_512": 0.003888127626851201,
"ssim_512": 0.996000746894162,
"psnr_512": 40.781900028166774,
"latent_nrmse": 0.019904406741261482,
"latent_cosine": 0.9997774362564087,
"alpha_mae": 9.341880560094409e-05
},
{
"id": "13",
"lpips_alex_512": 0.00787642877548933,
"ssim_512": 0.9938821301981401,
"psnr_512": 40.403632630082136,
"latent_nrmse": 0.030282530933618546,
"latent_cosine": 0.9995153546333313,
"alpha_mae": 6.808278867102396e-06
},
{
"id": "14",
"lpips_alex_512": 0.10415362566709518,
"ssim_512": 0.8997217393167819,
"psnr_512": 24.966557191764256,
"latent_nrmse": 0.1631270796060562,
"latent_cosine": 0.9867432713508606,
"alpha_mae": 0.0002106460870481005
},
{
"id": "15",
"lpips_alex_512": 0.032293133437633514,
"ssim_512": 0.9696098907103111,
"psnr_512": 27.556757057629092,
"latent_nrmse": 0.09265656769275665,
"latent_cosine": 0.9956912994384766,
"alpha_mae": 0.00012047337550742954
},
{
"id": "edit-0",
"lpips_alex_512": 0.001904923701658845,
"ssim_512": 0.9974066241437832,
"psnr_512": 43.80201499062957,
"alpha_mae": 9.189306520948223e-05
},
{
"id": "edit-1",
"lpips_alex_512": 0.0004783417098224163,
"ssim_512": 0.9967221750556993,
"psnr_512": 51.29105397500459,
"alpha_mae": 3.621718462775735e-05
}
],
"mean_lpips": 0.014105255333965437,
"max_lpips": 0.10415362566709518,
"mean_ssim": 0.9858412672397402,
"min_ssim": 0.8997217393167819,
"mean_latent_cosine": 0.9984375648200512
}