LAXMAYDAY/Qwen_image_edit_2511_int4

Qwen-Image-Edit-2511 Int4 Checkpoints

Overview

This repository provides Nunchaku int4 safetensors checkpoint files for Qwen-Image-Edit-2511. It packages multiple quantized variants in one place so you can choose between footprint and quality tradeoffs without pulling local-only reports or build metadata into the public release.

Recommended Starting Points

• quality-r64: default quality-focused starting point
• fast-r128: best FID among the packaged variants
• balanced-r32: smaller-footprint alternative when you want the lightest published option

Included Variants

Variant	File	Size (GiB)	PSNR	SSIM	LPIPS	FID	Notes
balanced-r32	nunchaku_qwen_image_edit_2511_balanced_r32_int4.safetensors	10.73	19.1581	0.8058	0.2019	77.3707	smaller footprint
balanced-r32-i64	nunchaku_qwen_image_edit_2511_balanced_r32_i64_int4.safetensors	10.73	19.2460	0.8134	0.2059	76.1155	-
balanced-r32-b125	nunchaku_qwen_image_edit_2511_balanced_r32_b125_int4.safetensors	10.73	19.2856	0.8103	0.2005	78.7961	-
fast-r32	nunchaku_qwen_image_edit_2511_fast_r32_int4.safetensors	10.73	19.1576	0.8110	0.2058	77.9059	-
fast-r64	nunchaku_qwen_image_edit_2511_fast_r64_int4.safetensors	11.08	19.4508	0.8130	0.2024	71.5310	-
fast-r128	nunchaku_qwen_image_edit_2511_fast_r128_int4.safetensors	11.79	19.5990	0.8153	0.1897	70.1136	best FID
mid-r32	nunchaku_qwen_image_edit_2511_mid_r32_int4.safetensors	10.73	19.4421	0.8075	0.2006	82.5143	-
mid-r128	nunchaku_qwen_image_edit_2511_mid_r128_int4.safetensors	11.79	19.6128	0.8259	0.1828	76.2305	-
quality-r32	nunchaku_qwen_image_edit_2511_quality_r32_int4.safetensors	10.73	19.4316	0.8136	0.1954	82.3566	-
quality-r64	nunchaku_qwen_image_edit_2511_quality_r64_int4.safetensors	11.08	19.6273	0.8158	0.1856	73.9762	default quality
quality-r96	nunchaku_qwen_image_edit_2511_quality_r96_int4.safetensors	11.43	19.5872	0.8158	0.1935	74.5920	-
quality-r96-i128	nunchaku_qwen_image_edit_2511_quality_r96_i128_int4.safetensors	11.43	19.6934	0.8189	0.1915	74.2818	-
quality-r128-b15	nunchaku_qwen_image_edit_2511_quality_r128_b15_int4.safetensors	11.79	19.7177	0.8202	0.1857	80.3767	-

Metrics

• Higher is better for PSNR and SSIM.
• Lower is better for LPIPS and FID.
• The numbers in metrics.json are best used as relative comparisons between the packaged variants, not as absolute cross-project leaderboard claims.

Limitations

• Quantized checkpoints can shift quality, latency, and memory behavior depending on runtime, hardware, scheduler, and inference settings.