MM-InstructEval is the multimodal version of the same idea. It treats the instruction itself as an experimental variable, and uses ten instruction templates per task.

Scale

  • 45 models were evaluated, of which 36 are multimodal LLMs

Four metrics

  • Best Performance, which is peak capability
  • Mean Relative Gain
  • Stability, which measures robustness to instruction wording
  • Adaptability, which scores model and instruction compatibility

Findings

  • the same model can swing widely as the instruction wording changes, and Stability is what quantifies that
  • open MLLMs break on multi-step tasks such as PuzzleVQA and long-tail relation extraction, and not on basic captioning
  • MultiInstruct combines 62 tasks from 21 open source datasets

Reading a result

  • a model that tops a benchmark and then falls when instructions are reworded has high Best Performance and low Stability, so the prompt is part of the system

The text only version is InstructEval.