SHIFT: Steering Hidden Intermediates in Flow Transformers

Fuente: arXiv
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Auteurs principaux: Konovalova, Nina, Kuznetsov, Andrey, Alanov, Aibek
Format: Preprint
Publié: 2026
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author Konovalova, Nina
Kuznetsov, Andrey
Alanov, Aibek
author_facet Konovalova, Nina
Kuznetsov, Andrey
Alanov, Aibek
contents Diffusion models have become leading approaches for high-fidelity image generation. Recent DiT-based diffusion models, in particular, achieve strong prompt adherence while producing high-quality samples. We propose SHIFT, a simple but effective and lightweight framework for concept removal in DiT diffusion models via targeted manipulation of intermediate activations at inference time, inspired by activation steering in large language models. SHIFT learns steering vectors that are dynamically applied to selected layers and timesteps to suppress unwanted visual concepts while preserving the prompt's remaining content and overall image quality. Beyond suppression, the same mechanism can shift generations into a desired \emph{style domain} or bias samples toward adding or changing target objects. We demonstrate that SHIFT provides effective and flexible control over DiT generation across diverse prompts and targets without time-consuming retraining.
format Preprint
id arxiv_https___arxiv_org_abs_2604_09213
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle SHIFT: Steering Hidden Intermediates in Flow Transformers
Konovalova, Nina
Kuznetsov, Andrey
Alanov, Aibek
Computer Vision and Pattern Recognition
Diffusion models have become leading approaches for high-fidelity image generation. Recent DiT-based diffusion models, in particular, achieve strong prompt adherence while producing high-quality samples. We propose SHIFT, a simple but effective and lightweight framework for concept removal in DiT diffusion models via targeted manipulation of intermediate activations at inference time, inspired by activation steering in large language models. SHIFT learns steering vectors that are dynamically applied to selected layers and timesteps to suppress unwanted visual concepts while preserving the prompt's remaining content and overall image quality. Beyond suppression, the same mechanism can shift generations into a desired \emph{style domain} or bias samples toward adding or changing target objects. We demonstrate that SHIFT provides effective and flexible control over DiT generation across diverse prompts and targets without time-consuming retraining.
title SHIFT: Steering Hidden Intermediates in Flow Transformers
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2604.09213