Article summarizer: the short version of a long text.

What a good summary keeps

A summary is a small version of an argument, not a small version of the text. That means it keeps three things and drops almost everything else.

• The claim. What the piece says, in a sentence. “Remote teams in the study shipped fewer features but had lower turnover” rather than “the article discusses remote work”.
• The evidence. The one or two facts the claim rests on, so the reader can judge how much to trust it.
• The caveat. The limit the author put on the claim: one industry, one year, a small sample, a condition. Without it, the summary says something the author did not.

Examples, background, anecdotes and repetition can go. If the summary is more than a short paragraph for a normal article, it probably kept something it did not need.

Summaries lose caveats

The caveat is the part most likely to go missing, whether a person or a model writes the summary. It is usually a clause, often in the middle of a sentence, and removing it makes the text shorter and more confident. A finding that held “for small teams in one region” becomes a finding that holds. A number that was an estimate becomes a fact.

That is the main risk of using any summarizer, including this one. Before you rely on a summary, or repeat anything from it, go back to the source and confirm the claim and its limits. The article rewriter page covers the same side-by-side check for rewrites.

Put a summary at the top of your own articles

The same skill works in reverse. A TL;DR or key-takeaways box at the top of an article you publish gives skimming readers the answer straight away and tells them whether the rest is for them. It also helps with AI assistants. They quote passages, and a short, self-contained block that states your main points in plain sentences is easier to lift accurately than conclusions scattered through the page.

Write that box last, from the finished article, and hold it to the same standard: the claim, the evidence, the caveat. A takeaway that overstates the article is worse than none.

What the summarizer does

It sends the text you paste to Claude Haiku, a fast Anthropic model, and returns a summary. It does not fetch URLs, check facts or tell you whether the source is trustworthy. Use it to read faster, and to draft takeaways you then check by hand.

AltoRank plans and drafts SEO content for a site every week, and a person approves each piece before it publishes.