Aphanta: Diagnosing Task-Aligned Image-Edited Intermediates for Multimodal Reasoning
Summary
Aphanta is an automated diagnostic framework that evaluates the utility of image-edited intermediates in multimodal reasoning pipelines, showing task-dependent benefits and improving performance on specific tasks.
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Paper page - Aphanta: Diagnosing Task-Aligned Image-Edited Intermediates for Multimodal Reasoning
Source: https://huggingface.co/papers/2608.26993 Explicit visual intermediates can help multimodal large language models (MLLMs) externalize spatial evidence and updated visual states, but their utility depends on whether an image editor can faithfully realize the required transformation.
We introduce Aphanta, an automated task-discovery and closed-loop diagnostic framework for the MLLM → image editor → MLLM pipeline.
Aphanta evaluates three conditions: direct reasoning, reasoning with an editor-generated intermediate, and reasoning with an idealized reference intermediate. This allows us to distinguish the potential visual headroom from the practical utility of current image editors.
Across 20 candidate tasks and multiple editor–MLLM combinations, we find that the utility of visual intermediates is strongly task-conditioned. The gains are concentrated in visual cue injection, grounding, and counterfactual state realization, whereas intermediates requiring symbol-sensitive construction or structural extrapolation are substantially less reliable.
On the selected positive-task subset, our consolidated Qwen pipeline improves the mean task score from 0.343 to 0.445 (+10.2 points; +29.7% relative). Meanwhile, the full study also retains filtered and unsuccessful tasks to expose the boundary of when visual intermediates are useful.
These results position image editing as a specialized visual workspace rather than a universal reasoning mechanism, and establish Aphanta as a reusable protocol for measuring task–representation alignment, editor realization, and downstream pipeline utility.
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