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arXiv · 2601.14903

PodBench: A Comprehensive Benchmark for Instruction-Aware Audio-Oriented Podcast Script Generation

Chenning Xu·Mao Zheng·Mingyu Zheng·Mingyang Song
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Abstract

Podcast script generation requires LLMs to synthesize structured, context-grounded dialogue from diverse inputs, yet systematic evaluation resources for this task remain limited. To bridge this gap, we introduce PodBench, a benchmark comprising 800 samples with inputs up to 21K tokens and complex multi-speaker instructions. We propose a multifaceted evaluation framework that integrates quantitative constraints with LLM-based quality assessment. Extensive experiments reveal that while proprietary models generally excel, open-source models equipped with explicit reasoning demonstrate superior robustness in handling long contexts and multi-speaker coordination compared to standard baselines. However, our analysis uncovers a persistent divergence where high instruction following does not guarantee high content substance. PodBench offers a reproducible testbed to address these challenges in long-form, audio-centric generation.

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Chenning Xu, Mao Zheng, Mingyu Zheng, Mingyang Song. 2026-01-21. PodBench: A Comprehensive Benchmark for Instruction-Aware Audio-Oriented Podcast Script Generation. https://arxiv.org/abs/2601.14903

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