Qwen-Image-Edit-2511 — INT8 tensorwise (+ConvRot), stock-ComfyUI native

Offline INT8 quantization of the Qwen/Qwen-Image-Edit-2511 transformer, produced with Comfy-Org/comfy-quants (export-model-int8-tensorwise). Loads natively in stock ComfyUI >= v0.27.0 (QUANT_ALGOS["int8_tensorwise"], SM >= 7.5 / Turing+) — no custom node required.

Transformer-only (for models/diffusion_models/, load via UNETLoader); pair with the usual Qwen-Image-Edit text encoder and VAE.

Quantization contract

• 839 quantized Linears (selection mirrors the family's official recipe — same membership as the mxfp8/nvfp4 exports; time_text_embed/img_in/norm_out/ proj_out/txt_in kept bf16); all 839 ConvRot-rotated (regular Hadamard, group 256).
• Per layer: int8 weight + float32 [out,1] scale + comfy_quant marker {"format": "int8_tensorwise", "convrot": true, "convrot_groupsize": 256} (byte-exact to stock ComfyUI's save path).
• Includes the __index_timestep_zero__ sentinel required for correct 2511 reference-image conditioning.
• Weight SQNR (comfy-kitchen dequant, original basis): ~40.6 dB.
• Quant math bit-faithful to comfy-kitchen >= 0.2.15.