Diffusion Instruction Tuning

Fuente: arXiv
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Autori principali: Jin, Chen, Tanno, Ryutaro, Saseendran, Amrutha, Diethe, Tom, Teare, Philip
Natura: Preprint
Pubblicazione: 2025
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author Jin, Chen
Tanno, Ryutaro
Saseendran, Amrutha
Diethe, Tom
Teare, Philip
author_facet Jin, Chen
Tanno, Ryutaro
Saseendran, Amrutha
Diethe, Tom
Teare, Philip
contents We introduce Lavender, a simple supervised fine-tuning (SFT) method that boosts the performance of advanced vision-language models (VLMs) by leveraging state-of-the-art image generation models such as Stable Diffusion. Specifically, Lavender aligns the text-vision attention in the VLM transformer with the equivalent used by Stable Diffusion during SFT, instead of adapting separate encoders. This alignment enriches the model's visual understanding and significantly boosts performance across in- and out-of-distribution tasks. Lavender requires just 0.13 million training examples, 2.5% of typical large-scale SFT datasets, and fine-tunes on standard hardware (8 GPUs) in a single day. It consistently improves state-of-the-art open-source multimodal LLMs (e.g., Llama-3.2-11B, MiniCPM-Llama3-v2.5), achieving up to 30% gains and a 68% boost on challenging out-of-distribution medical QA tasks. By efficiently transferring the visual expertise of image generators with minimal supervision, Lavender offers a scalable solution for more accurate vision-language systems. All code, training data, and models will be shared at https://astrazeneca.github.io/vlm/.
format Preprint
id arxiv_https___arxiv_org_abs_2502_06814
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Diffusion Instruction Tuning
Jin, Chen
Tanno, Ryutaro
Saseendran, Amrutha
Diethe, Tom
Teare, Philip
Machine Learning
Artificial Intelligence
Graphics
We introduce Lavender, a simple supervised fine-tuning (SFT) method that boosts the performance of advanced vision-language models (VLMs) by leveraging state-of-the-art image generation models such as Stable Diffusion. Specifically, Lavender aligns the text-vision attention in the VLM transformer with the equivalent used by Stable Diffusion during SFT, instead of adapting separate encoders. This alignment enriches the model's visual understanding and significantly boosts performance across in- and out-of-distribution tasks. Lavender requires just 0.13 million training examples, 2.5% of typical large-scale SFT datasets, and fine-tunes on standard hardware (8 GPUs) in a single day. It consistently improves state-of-the-art open-source multimodal LLMs (e.g., Llama-3.2-11B, MiniCPM-Llama3-v2.5), achieving up to 30% gains and a 68% boost on challenging out-of-distribution medical QA tasks. By efficiently transferring the visual expertise of image generators with minimal supervision, Lavender offers a scalable solution for more accurate vision-language systems. All code, training data, and models will be shared at https://astrazeneca.github.io/vlm/.
title Diffusion Instruction Tuning
topic Machine Learning
Artificial Intelligence
Graphics
url https://arxiv.org/abs/2502.06814