---
title: "Do AI assistants cite fresher content than Google? Ahrefs data"
url: https://seomadman.com/research/content-freshness-ai-citations-ahrefs-study
section: research
published: 2026-09-18T00:00:00.000Z
modified: 2026-09-18T00:00:00.000Z
author: Adam Hafez
topics: ["AI search"]
---

# Do AI assistants cite fresher content than Google? Ahrefs data

## The short answer

Ahrefs analyzed 16.975 million URLs cited by AI assistants and Google, and found AI-cited URLs averaged 1,064 days old versus 1,432 for organic results, 25.7 percent fresher. Cited content still averaged 2.9 years old, and Ahrefs warns that freshness is one factor among many.

## Key takeaways

- Ahrefs extracted 16.975 million cited URLs from Brand Radar across ChatGPT, Perplexity, Gemini, Copilot, AI Overviews and organic Google results.
- URLs cited by AI assistants averaged 1,064 days old, against 1,432 days for URLs in organic Google results, which Ahrefs reports as 25.7 percent fresher.
- AI-cited content still averaged about 2.9 years old, so assistants also lean on long-lived pages rather than only recent ones.
- Ahrefs notes Google has warned against changing publish dates without changing page content, so date edits alone are not a tactic.
- The study measures the age of cited URLs, not the effect of updating a page, so it shows association and not cause.

Freshness advice is usually anecdotal. Ahrefs published a large dataset that at least lets the
claim be checked against something: how old are the pages that AI assistants actually cite?
This write-up reports that study. SEO Madman did not run it.

## What did Ahrefs measure?

Ahrefs used [Brand Radar](https://ahrefs.com/blog/do-ai-assistants-prefer-to-cite-fresh-content/)
data to extract 16.975 million cited URLs from ChatGPT, Perplexity, Gemini, Copilot, Google AI
Overviews and organic Google results. For each URL it measured days since publication and days
since the last update, then compared averages by platform. The [ai-search](/topics/ai-search)
hub tracks related studies.

## Do AI assistants cite fresher content than Google?

Yes, on average. URLs cited by AI assistants averaged 1,064 days old versus 1,432 days for
organic results, a gap Ahrefs reports as 25.7 percent. The gap is uneven: Ahrefs reports ChatGPT
with the strongest freshness preference and AI Overviews slightly older than organic results.

## Does this mean updating dates raises citations?

No. The average cited URL is still about 2.9 years old, and the study compares ages of cited
pages, not before-and-after edits. Ahrefs itself notes Google has warned against changing
publish dates without changing content, and that freshness is one factor among many.

## What can be acted on from this?

Treat a real content review as maintenance for pages that must stay accurate, and do not treat
a date change as a ranking lever. The study supports neither a refresh schedule nor a claim
about causation.

## Sources

1. [Do AI Assistants Prefer to Cite Fresh Content? (17 Million Citations Analyzed)](https://ahrefs.com/blog/do-ai-assistants-prefer-to-cite-fresh-content/) - Ahrefs (primary)