想了解如何科学评估AI做PPT的水平？这篇论文用113个主题和8133个探针，测出NotebookLM能覆盖85%的受众关键信息，比DeepPresenter和SlideTailor强不少。
X+Slides 是一个评估大语言模型根据受众条件自动生成幻灯片的新基准。它覆盖 113 个主题和 7 种演示场景，使用 8133 个去重、基于源文本的探针，并引入四个互补指标：Audience Coverage、Domain-wise Coverage、Efficiency 和 Correctness。在 DeepPresenter、SlideTailor 和 NotebookLM 上的实验表明，在 τ_A=0.7 阈值下，NotebookLM 消融版达到最高 Audience Coverage 0.853，而 DeepPresenter 为 0.714，SlideTailor 为 0.594。结果显示当前系统仍无法完整恢复受众关键信息，且视觉质量不能替代源文本验证。
X+Slides: Benchmarking Audience-Conditioned Slide Generation
Automatically generating slide decks from source documents is an important application of large language models (LLMs). Existing benchmarks primarily assess slide completeness and technical depth, while overlooking the target audience as a critical real-world factor. For instance, specialists demand rigorous proofs, whereas decision-makers prioritize actionable conclusions. To bridge this gap, we introduce X+Slides, a benchmark specifically designed for audience-conditioned slide generation. Built on a diverse corpus spanning 113 topics and seven presentation scenes, X+Slides employs a dynamic evaluation framework constructed from 8,133 deduplicated, source-grounded probes. By assigning audience-specific utility weights to the same source-grounded probes, X+Slides reports four complementary metrics: Audience Coverage measures how much audience-essential information is conveyed, Domain-wise Coverage shows which information types are covered, Efficiency measures delivered utility per unit of attention cost, and Correctness verifies whether slide claims are supported by the source. Experiments on DeepPresenter, SlideTailor, and NotebookLM show that current systems can recover a substantial but still incomplete part of audience-essential information: at $τ_A=0.7$, DeepPresenter reaches a best Audience Coverage of 0.714, SlideTailor reaches 0.594, and the NotebookLM ablation reaches 0.853 while showing clear grounding differences. These results indicate that visual quality and broad topic coverage should not be treated as evidence support without source-grounded evaluation.