AI systems quote passages that make a specific, checkable claim in plain words, with the number, the source, and the date attached. The bottom line: the one controlled academic test of tactics for generative engines found that adding statistics, quotations from credible sources, and citations raised visibility by up to 40 percent on its benchmark while keyword stuffing did not help, so write passages that carry evidence, and remember that the result comes from a benchmark and varies by engine and topic.
Related: our guide to answer engine optimization defines the term and lists eight steps.
What the research tested
In "GEO: Generative Engine Optimization," Aggarwal and colleagues built a benchmark of queries and tested nine ways of rewriting web content to be more visible in generative engine responses. The methods that added citations to credible sources, quotations from relevant sources, and statistics performed best, with the abstract reporting gains of up to 40 percent in visibility, while keyword stuffing offered little or none. The effect varied by topic, which is a reason to test on your own material. Later critical reviews caution that results depend on the engine, the benchmark, and how visibility is scored, so treat the paper as evidence about which kinds of content help, not a guaranteed lift.
The anatomy of a quotable passage
| Element | Example |
|---|---|
| A direct claim | Emergency plumbing calls in our service area are answered by a licensed plumber within 60 minutes |
| A number | 60 minutes, 24 hours a day, seven days a week |
| A source or basis | Measured across our dispatch records for the last 12 months |
| A date | Data through August 2026 |
| A limit | Response time is longer during declared storm events |
A system can lift that passage as it stands, and a reader can check it. Contrast it with "we pride ourselves on fast response," which gives a system nothing to quote.
How to write for quotation
- Lead each section with the claim. One sentence, in plain words.
- Attach the number. Prices, ranges, timeframes, capacities, percentages.
- Say where it comes from. Your own data, a named study, a regulator, or a standard, with a link.
- Date it. Numbers age, and a dated number is more useful and more honest.
- State the limit. A claim with its boundary is more credible and more accurate.
- Use real quotations only. Quote named people who said the words, with their role. Never invent attributions.
- Define terms once, plainly. A one sentence definition is a common passage to lift.
What to avoid
- Keyword repetition. The paper found it did not help.
- Superlatives with nothing behind them: best, leading, trusted.
- Statistics with no source, which a system cannot verify and a reader should not trust.
- Copying another site's numbers without attribution.
Original data is the strongest asset
A system cannot cite a fact that exists nowhere else unless you publish it. Your own numbers, such as response times, project counts, average job sizes, or survey results from your customers, are quotable and hard for a competitor to duplicate. Publish the method alongside them.
Questions people ask
What kind of content do AI tools quote?
Passages with a specific, checkable claim stated plainly, with the number, source, and date attached. The GEO paper found adding statistics, quotations, and citations raised visibility by up to 40 percent on its benchmark.
Does keyword stuffing help AI visibility?
The GEO paper found little or no gain from keyword stuffing on its benchmark.
Should I add expert quotations?
Only real quotations from named people who said them. Invented or paraphrased attributions damage credibility.
Is the GEO paper's result guaranteed?
No. It comes from a benchmark, and later reviews caution that results vary by engine, domain, and scoring method.