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(Almost) Free Modality Stitching of Foundation Models

Jaisidh Singh, Diganta Misra, Boris Knyazev, Antonio Orvieto

2025-07-17

(Almost) Free Modality Stitching of Foundation Models

Summary

This paper talks about Hyma, a framework that helps connect and align different AI models working with separate types of data, like images and text, into one system more efficiently.

What's the problem?

The problem is that building AI systems that understand multiple kinds of data combined usually requires expensive and time-consuming searches to find the best models and ways to connect them.

What's the solution?

The authors developed a hypernetwork-based method called Hyma that automatically selects the best single-modal AI models and trains small connectors between them. This reduces the time and cost of building multimodal AI systems while keeping their performance high.

Why it matters?

This matters because it makes creating powerful AI that can work with images, text, and other types of data faster and cheaper, helping more applications like better search engines, smart assistants, and improved AI creativity tools.

Abstract

Hypernetwork Model Alignment (Hyma) optimizes uni-modal model selection and connector training for multi-modal models, reducing search costs while maintaining performance.