Fine-tune Qwen-Image-Edit into a depth estimator on one 32GB GPU with 4-bit QLoRA
AntonObukhov1 · x · 2026-09-09
Marigold V2 author Anton Obukhov shared the low-cost recipe:
- Start from a big pretrained DiT (Qwen-Image-Edit-2509)
- Quantize to 4-bit
- Add a rank-128 QLoRA
- Fine-tune on a single 32 GB consumer GPU
Sensible depth after a few hours, done in days — no 80 GB card, no 8-GPU node. Inference is single-step and won't OOM at 2K resolution. Paper, code, weights, and demo links are all provided.
A textbook workflow for repurposing large pretrained models into specialized perception models on consumer hardware.
Related event: Marigold V2: A Single-GPU DiT Depth Estimator Hits SIGGRAPH Asia 2026(11 posts)→
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