Evidence record 18243 · automatically gathered

Multimodal Model Diffing for Feature Discovery and Control

Multimodal Large Language Models (MLLMs) exhibit strong visual understanding, yet the internal features that cause these behaviors remain difficult to identify, audit, or control. While applicable to post-hoc inspection, hidden states that are decomposed into interpretable feature directions using sparse autoencoders (SAEs) neither readily isolate which features are changed by multimodal training, nor are they directly useful for targeted control. We introduce MMDiff, a multimodal model-diffing

Record details

Published: 10 August 2026
Source: arXiv cs.AI
Category: Research
Topics: Transparency
Retrieved: 11 August 2026

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ethics.ai (10 August 2026), “Multimodal Model Diffing for Feature Discovery and Control,” evidence record 18243, https://ethics.ai/record/18243 (originally published by arXiv cs.AI).

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