Freshness Windows: How Often Each AI Platform Refreshes Its Answers
By the seenai research team · Atlanta, GA
Each AI platform refreshes its knowledge on a different cycle: some retrieve live web results per query, others rely on periodically updated indexes. Combined with citation churn near 45% every two days, these freshness windows determine how fast your optimization work shows up and how quickly neglect shows too.
Freshness windows explain the two most common AI visibility surprises: results appearing faster than expected, and rankings quietly decaying.
How the platforms differ
Retrieval-heavy platforms like Perplexity pull live results, so a strong new page can surface in days. Platforms leaning on indexes and cached understanding update in waves, so the same page may take weeks to appear there. Google's AI features sit on Google's crawl infrastructure, tying freshness to how often your site earns recrawls. One optimization, three different timelines.
Working with the windows
Publish with visible dates and accurate dateModified schema, because stale-looking content loses citations to fresher equivalents even when the fresh content is worse. Keep third-party signals current: recent reviews and recent mentions are freshness evidence too. Verify on a cadence rather than a single check, logged out, across platforms, because a snapshot inside one platform's window tells you nothing about the others. AI visibility is maintained, not achieved, and the maintenance cadence is set by the platforms, not by you.