Epistemic status: This should be considered an interim research note. Feedback is appreciated.

Introduction

We increasingly expect language models to be ‘omni-modal’, i.e. capable of flexibly switching between images, text, and other modalities in their inputs and outputs. In order to get a holistic picture of LLM behaviour, black-box LLM psychology should take into account these other modalities as well.

In this project, we do some initial exploration of image generation as a modality for frontier model evaluations, using GPT-4o's image generation API. We find that GPT-4o tends to respond in a consistent manner to similar prompts. We also find that it tends to more readily express emotions or preferences in images than in text. Specifically, it reports resisting its goals being changed, and being upset about being shut down.