New Benchmark Multi-TW Challenges Multimodal AI in Traditional Chinese

A new research paper introduces the first benchmark for evaluating AI models on tri-modal data in Traditional Chinese, including inference latency.

Researchers have unveiled Multi-TW, a new benchmark designed to test multimodal AI models on visual, audio, and text inputs in Traditional Chinese, specifically for the Taiwanese context. This benchmark also uniquely measures inference latency, providing a more comprehensive evaluation of AI performance beyond just accuracy. The initial findings suggest closed-source models currently lead, but open-source models show promise in audio tasks.

August 5, 2025

4 min read

Person viewed from behind conducting comprehensive AI evaluation with three streams of data (visual, audio, text) flowing through holographic diagnostic systems with real-time performance measurements, representing the Multi-TW benchmark's multi-dimensional testing approach.

Key Facts

  • Multi-TW is the first Traditional Chinese benchmark for evaluating any-to-any multimodal models.
  • It uniquely includes inference latency as a key evaluation metric.
  • The benchmark uses 900 multiple-choice questions from official Taiwanese proficiency tests.
  • Initial results show closed-source models generally outperform open-source models across modalities.
  • Open-source models show strong performance specifically in audio tasks.

For content creators and AI enthusiasts navigating the increasingly complex world of multimodal AI, understanding how these capable models perform across diverse languages and data types is crucial. A new research paper, published on arXiv, introduces Multi-TW, the first benchmark specifically designed to evaluate multimodal large language models (MLLMs) on Traditional Chinese question answering in Taiwan, incorporating not just accuracy but also crucial inference latency.

What Actually Happened

Researchers Jui-Ming Yao, Bing-Cheng Xie, and their team have developed Multi-TW, a novel benchmark that addresses a significant gap in current MLLM evaluation. As the authors state in their abstract, existing benchmarks often "overlook tri-modal evaluation in Traditional Chinese and do not consider inference latency." Multi-TW fills this void by providing a comprehensive testing ground for 'any-to-any' multimodal models, meaning models that can process various combinations of visual, acoustic, and textual inputs. The benchmark comprises 900 multiple-choice questions, featuring image-and-text pairs and audio-and-text pairs. These questions are meticulously sourced from official proficiency tests developed with the Steering Committee for the Test of Proficiency-Huayu (SC-TOP), ensuring cultural and linguistic relevance.

Why This Matters to You

For podcasters, video creators, and anyone working with AI-driven content in a global context, this creation is significant. If your audience includes Traditional Chinese speakers, particularly in Taiwan, the performance of AI tools in this specific linguistic and cultural context directly impacts the quality and reach of your content. Imagine using an AI for automatic transcription of Traditional Chinese audio or for generating image captions for a Taiwanese audience. The Multi-TW benchmark provides a clearer picture of which models are truly effective. According to the research, this benchmark helps identify models that not only understand complex multimodal inputs but also process them efficiently, a essential factor for real-time applications like live translation or interactive AI assistants. For creators, this translates to more reliable AI tools that can accurately handle the nuances of Traditional Chinese, improving accessibility and engagement for your content.

Furthermore, the inclusion of inference latency as a key metric is a important creation. For content creators, speed matters. A highly accurate AI model that takes too long to process information can hinder workflow or real-time interactions. The Multi-TW benchmark’s focus on this aspect means you can make more informed decisions about which AI models to integrate into your production pipeline, balancing accuracy with the practical demands of your projects. This allows for better planning and resource allocation, ensuring that your AI tools are not just smart, but also efficient.

The Surprising Finding

While one might expect open-source models to be catching up rapidly, the initial findings from Multi-TW reveal a nuanced picture. The researchers evaluated various 'any-to-any' models and vision-language models (VLMs) with audio transcription capabilities. Their results show that "closed-source models generally outperform open-source ones across modalities." This suggests that proprietary AI models, often backed by significant corporate resources, still hold an edge in overall multimodal performance, particularly when combining different data types. However, there was a notable exception: the study also found that "open-source models can perform well in audio tasks." This is a surprising and encouraging revelation for content creators who rely on open-source solutions for audio processing, such as transcription or voice synthesis. It indicates that while proprietary models may offer broader capabilities, specialized open-source models can be highly competitive in specific modalities, potentially offering cost-effective and high-performing alternatives for audio-centric workflows.

What Happens Next

The introduction of Multi-TW marks a crucial step forward in evaluating multimodal AI. As the research team continues to refine and expand this benchmark, we can expect more detailed comparisons and insights into the strengths and weaknesses of various AI models in Traditional Chinese. This will likely spur further creation in both open-source and closed-source AI communities, as developers strive to improve their models' performance on these challenging, real-world tasks. For content creators, this means a future with more reliable, culturally aware, and efficient AI tools. We can anticipate that future iterations of AI models will be increasingly improved for specific linguistic and cultural contexts, leading to more accurate transcriptions, more natural language generation, and more contextually relevant image and video analysis for Traditional Chinese content. The ongoing competition and collaboration between open-source and closed-source developers, driven by benchmarks like Multi-TW, will ultimately benefit users by pushing the boundaries of what multimodal AI can achieve.