How long does GEO take to show results?
Short answer: Retrieval engines such as Perplexity and ChatGPT with search reflect changes in days to weeks; knowledge baked into training data takes months.
It depends on which part of the answer you are trying to change. Fixes that affect live retrieval show up in days to a few weeks. Changes to what a model "knows" from training take months, because they wait for the next model update.
A realistic timeline for a typical service business:
- Week 1 to 2: crawler blocks removed, structured data fixed, key pages rewritten. Perplexity and ChatGPT with search re-fetch pages fairly quickly, so citations of your own domain can appear within this window.
- Week 3 to 6: directory listings and Google Business Profile corrected; corroboration improves and you start appearing in more samples for unbranded prompts. Google AI Overviews follow the normal re-crawl cadence for your site.
- Month 2 to 3: share of voice trends become readable. This is the point at which you can tell whether the strategy is working rather than whether the engines have noticed a single change.
- Beyond: improvements to the underlying model knowledge arrive with each provider's model refresh, which you do not control.
Two things speed it up. First, fix the blocking issues before the content issues; a beautifully written page that PerplexityBot cannot fetch is wasted. Second, get the same facts repeated on third-party sites the engines already cite for your category, because assistants weight corroboration heavily.
Two things slow it down. A slow or JavaScript-only site that AI crawlers read as empty, and inconsistent business facts across the web that leave the model unsure which version to trust.
This is why Seoptist tracks weekly and shows eight to twelve weeks of trend before suggesting any conclusions. A 14-day trial will show you the starting point and the first fixes landing, not the full curve.