Challenge: unified multimodal large language models (MLLMs) are emerging but lack a systematic framework to connect them and situate current trends within a broader landscape.
Approach: They present a systematic review of unified Multimodal Large Language Models . they outline the foundational concepts and prerequisites for understanding them .
Outcome: The present review provides a systematic and systematic overview of unified MLLMs . it discusses persistent challenges and identify promising directions for future research .

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The Revolution of Multimodal Large Language Models: A Survey (2024.findings-acl)

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Challenge: Recent advances in large language models have led to the development of multimodal large language model.
Approach: They present a review of recent visual-based Large Language Models and analyze their architectures and alignment strategies.
Outcome: The proposed models can integrate visual and textual modalities while providing a dialogue-based interface and instruction-following capabilities.
Multimodal Large Language Models for Text-rich Image Understanding: A Comprehensive Review (2025.findings-acl)

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Challenge: Recent advances in vision-language models have unified perception and understanding tasks within Visual Question Answering paradigms.
Approach: They propose to outline timeline, architecture, and pipeline of nearly all TIU MLLMs and review their performance on mainstream benchmarks.
Outcome: The proposed models perform well on mainstream benchmarks and are compared with other models.
MM-LLMs: Recent Advances in MultiModal Large Language Models (2024.findings-acl)

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Challenge: MultiModal Large Language Models (MM-LLMs) have undergone significant advances in the past year . traditional MM models incur substantial computational costs, especially when trained from scratch .
Approach: They propose a taxonomy encompassing 126 MM-LLMs and summarize key training recipes to enhance their potency.
Outcome: The proposed models preserve the reasoning and decision-making capabilities of LLMs and empower diverse range of MM tasks.
Exploring and Evaluating Multimodal Knowledge Reasoning Consistency of Multimodal Large Language Models (2025.findings-emnlp)

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Challenge: MLLMs have achieved significant breakthroughs in understanding across text and vision, but current models still face inconsistencies in reasoning outcomes.
Approach: They propose to evaluate multimodal large language models using a multimodal knowledge reasoning dataset to examine the extent of consistency degradation.
Outcome: The proposed evaluation tasks show that MLLMs are inefficient at integrating knowledge across modalities .
From Multimodal LLM to Human-level AI: Modality, Instruction, Reasoning, Efficiency and beyond (2024.lrec-tutorials)

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Challenge: This tutorial aims to deliver a comprehensive review of cutting-edge research in MLLMs.
Approach: This tutorial will review cutting-edge research in MLLMs and examine the impact of ML in learning and reasoning.
Outcome: This course will review cutting-edge research in MLLMs and examine the impact of ML models on learning, learning, and multimodal reasoning.
Probing Multimodal Large Language Models for Global and Local Semantic Representations (2024.lrec-main)

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Challenge: Existing studies have focused on the ability of MLLMs to generate single tokens one by one, while lacking studies about how their representation vectors can encode global multimodal information.
Approach: They propose to use image-caption corpus to train Multimodal Large Language Models (MLLMs) . they find that the topmost layers encode more global semantic information .
Outcome: The proposed models can encode more global semantic information, rather than the topmost layers, and perform better on visual-language entailment tasks.
Explainability and Interpretability of Multilingual Large Language Models: A Survey (2025.emnlp-main)

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Challenge: Existing literature on multilingual large language models lacks transparency in their internal processes.
Approach: They propose to use multilingual large language models to examine their explainability and interpretability methods.
Outcome: The present study examines the explainability and interpretability of multilingual large language models.
Self-Improvement in Multimodal Large Language Models: A Survey (2025.findings-emnlp)

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Challenge: Using data and data, self-improvement for Large Language Models has improved model capabilities without significantly increasing costs.
Approach: This survey provides a comprehensive overview of self-improvement for Large Language Models . it includes commonly used evaluations and downstream applications .
Outcome: The authors provide a comprehensive overview of self-improvement in Multimodal LLMs.
UnifiedMLLM: Enabling Unified Representation for Multi-modal Multi-tasks With Large Language Model (2025.findings-naacl)

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Challenge: Representative models like LLaVA and MiniGPT-4 have great capabilities in various tasks.
Approach: They propose a unified model to represent various multi-modal tasks using a single representation.
Outcome: The proposed model outperforms existing models in a variety of tasks while maintaining generality and scalability.
From Specific-MLLMs to Omni-MLLMs: A Survey on MLLMs Aligned with Multi-modalities (2025.findings-acl)

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Challenge: MLLMs are able to integrate multiple modalities into a single model to tackle complex tasks in real-world scenarios.
Approach: They propose a comprehensive survey of Omni-MLLMs to address the challenges and opportunities of multimodal modeling.
Outcome: The proposed model can integrate multiple modalities into a single model and provide novel perspectives.

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