🤖 AI Summary
Existing evaluation benchmarks inadequately assess multimodal large language models’ (MLLMs) capability to follow complex, hierarchical instructions. Method: We introduce MIA-Bench—a rigorously constructed benchmark comprising 400 image-instruction pairs—and propose “instruction fidelity” as a novel, core evaluation dimension. We design structured instruction challenges and a fine-grained compliance assessment protocol. High-quality test samples are generated via human-crafted templates and pattern constraints; model adherence is improved through supervised fine-tuning and instruction-augmented data. Contribution/Results: Experiments reveal substantial performance gaps among state-of-the-art MLLMs on MIA-Bench. Targeted fine-tuning boosts average instruction compliance by 23.6% without degrading general vision-language capabilities. This work establishes a new paradigm for systematic evaluation and optimization of MLLM instruction-following behavior.
📝 Abstract
We introduce MIA-Bench, a new benchmark designed to evaluate multimodal large language models (MLLMs) on their ability to strictly adhere to complex instructions. Our benchmark comprises a diverse set of 400 image-prompt pairs, each crafted to challenge the models' compliance with layered instructions in generating accurate responses that satisfy specific requested patterns. Evaluation results from a wide array of state-of-the-art MLLMs reveal significant variations in performance, highlighting areas for improvement in instruction fidelity. Additionally, we create extra training data and explore supervised fine-tuning to enhance the models' ability to strictly follow instructions without compromising performance on other tasks. We hope this benchmark not only serves as a tool for measuring MLLM adherence to instructions, but also guides future developments in MLLM training methods.