---
license: apache-2.0
base_model: Qwen/Qwen-Image-Edit-2511
tags:
- qwen-image
- comfyui
- int8
- quantized
- image-editing
---

# 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](https://github.com/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.