MMMG: a Comprehensive and Reliable Evaluation Suite for Multitask
  Multimodal Generation
Authors: name: Jihan Yao; name: Yushi Hu; name: Yujie Yi; name: Bin Han; name: Shangbin Feng; name: Guang Yang; name: Bingbing Wen; name: Ranjay Krishna; name: Lucy Lu Wang; name: Yulia Tsvetkov; name: Noah A. Smith; name: Banghua Zhu
Published: 2025-05-23 08:21:28

Abstract: Automatically evaluating multimodal generation presents a significant
challenge, as automated metrics often struggle to align reliably with human
evaluation, especially for complex tasks that involve multiple modalities. To
address this, we present MMMG, a comprehensive and human-aligned benchmark for
multimodal generation across 4 modality combinations (image, audio, interleaved
text and image, interleaved text and audio), with a focus on tasks that present
significant challenges for generation models, while still enabling reliable
automatic evaluation through a combination of models and programs. MMMG
encompasses 49 tasks (including 29 newly developed ones), each with a carefully
designed evaluation pipeline, and 937 instructions to systematically assess
reasoning, controllability, and other key capabilities of multimodal generation
models. Extensive validation demonstrates that MMMG is highly aligned with
human evaluation, achieving an average agreement of 94.3%. Benchmarking results
on 24 multimodal generation models reveal that even though the state-of-the-art
model, GPT Image, achieves 78.3% accuracy for image generation, it falls short
on multimodal reasoning and interleaved generation. Furthermore, results
suggest considerable headroom for improvement in audio generation, highlighting
an important direction for future research.