How often does AI update what it knows about you?

Published 7 min read

OpenAI model (gpt-5.6-luna) via Codex CLI with web search, not the ChatGPT app, 01.11.2026, one question asked 10 times.

How often does ChatGPT update its information? The trained model updates rarely. With search on, ChatGPT can read your changed page once it fetches it again. The timing depends on crawling, not on a fixed schedule.

Card needed. Cancel before day 7 and nothing is charged.

Your company (Your company)Competitor

ChatGPT

What does Example Co. include in its basic plan?

The basic plan includes email support and a shared inbox. Live chat was added this month.

Sources
  1. exampleco.exampleexampleco.example
Example: invented company. The answer quotes a page changed this month, found through search.

How often AI updates what it knows

ChatGPT's trained memory changes only with a new model. With search on, it can read your new page once it fetches it again. There is no fixed schedule: crawling and indexing decide.

Key points

  • Two clocks. Training memory updates with new models. Search can pick up a change much sooner.

  • No fixed date. Nobody can say the day AI shows your change. Crawling and indexing decide.

  • Measure, do not guess. Ask the same question before and after, more than once.

What is the difference between training data and live search?

Training data is what the model learned up to a cutoff date. Live search is what it reads on the web when someone asks.

Two ways ChatGPT can know about your company
Training memoryLive search
When it updatesWhen a new model is releasedEach time a page is read again
What it knowsPages up to the cutoff datePages it finds now
Can you speed it up?NoPartly: make your page easy to find

The gap can be long. OpenAI lists a cutoff of 30 September 2024 for its GPT-5 API model, now marked deprecated. Its snapshot is dated 7 August 2025, about ten months later.

Newer models have newer cutoffs. For GPT-6 Astra, OpenAI lists 30 April 2026. These are API models, and the ChatGPT app may use others.

When will ChatGPT see my website changes?

When it reads your page again. That can be soon or late, and no maker gives a fixed date.

  • OpenAI: after a robots.txt change, its search systems can take about 24 hours to adjust.
  • Google: crawling can take anywhere from a few days to a few weeks.
  • Bing: no tool can promise when or how your content appears in AI answers.

After a crawl, the page still has to be indexed. Then it has to be picked for the answer. Each step can take its own time.

What speeds up a re-read of your page?

You cannot force a re-read. You can make your changed page easy to find and clearly new.

  • Ask for a recrawl

    Use URL Inspection in Google Search Console and submit the page in Bing Webmaster Tools.

  • Keep lastmod true

    Bing asks for the real date the page content changed, not the date the sitemap was built.

  • Use IndexNow

    It tells Bing and other engines that a page changed. It does not promise fast indexing.

  • Let AI bots in

    Allow OAI-SearchBot. OpenAI says sites that block it are not shown in ChatGPT search answers.

  • Link to the page

    Link the changed page from your home page or menu, so crawlers reach it fast.

  • Change the visible text

    Markup alone is not enough. The facts must be in the text people read.

Fix wrong facts on other sites too, or AI may keep reading them. See how to fix wrong facts AI states.

Does each AI engine update at the same speed?

No. Each engine reads the web through its own search, so each picks up a change on its own time.

Where each engine reads your changed page
EngineReads your page throughWhat to check
ChatGPTChatGPT search, with OpenAI's crawler OAI-SearchBotOAI-SearchBot allowed in robots.txt
Google AI OverviewsThe Google indexPage indexed and able to show a snippet
PerplexityIts own crawler, PerplexityBotPerplexityBot allowed in robots.txt

So one engine may show your new fact while another still shows the old one. Check all three.

Why measure before and after a change?

Because one answer proves little. The same question can bring a different answer each time.

  1. 1

    You change the page

    Write down the date and the old answer.

  2. 2

    A crawler reads it

    Google, Bing or the AI engine's own bot fetches the page again.

  3. 3

    The page is indexed

    The new version is stored and can be found.

  4. 4

    AI reads it in an answer

    A search for the question finds the new page.

  5. 5

    The next weekly check counts it

    You see if the answer changed, and on which engine.

In our runs, one question asked 10 times gave 9 different top-5 orders. So ask more than once before you judge a change. Read why one answer can mislead you and why AI gives different answers.

Want a before and after for each fix, every week? Start the 7-day trial

Questions about how fast AI updates

Does ChatGPT use live data?

Yes, when it searches the web. Then it reads pages as they are now. Without search, it answers from its trained memory.

What is ChatGPT's knowledge cutoff?

It depends on the model. OpenAI lists a cutoff for each API model, such as 30 April 2026 for GPT-6 Astra. Search can add newer facts.

Can I make ChatGPT re-read my page?

Not directly. Keep the page open to OAI-SearchBot, linked from your site and in your sitemap with a true date.

Why does ChatGPT still show my old price after I changed it?

It may not have read the new page yet. Or it may quote another site with the old price. Open the links next to the answer to see which.

See the before and after for each fix

After you change a page, the next weekly check shows a before and after for each fix. Start the 7-day trial: it includes 2 check runs, on day 1 and day 7.

Card needed. Cancel before day 7 and nothing is charged.

What does Example Co. include in its basic plan?

  1. 1Your new answer?
invented company.
Mr. Nenn, the Nenn mascot, waits for the next weekly check

About the author and sources

  1. Nenn, Nenn test: one question asked 10 times, top-5 orders, checked . OpenAI model (gpt-5.6-luna) via Codex CLI with web search, not the ChatGPT app, 01.11.2026, one question asked 10 times.
  2. OpenAI, GPT-5 model page (knowledge cutoff, snapshot), checked
  3. OpenAI, GPT-6 Astra model page (knowledge cutoff), checked
  4. OpenAI, Overview of OpenAI crawlers, checked
  5. Google Search Central, Ask Google to recrawl your URLs, checked
  6. Google Search Central, AI features and your website, checked
  7. Bing Webmaster Blog, Keeping Content Discoverable with Sitemaps in AI Powered Search, 31 July 2025, checked
  8. IndexNow.org, IndexNow and IndexNow FAQ, checked
  9. Perplexity, Perplexity crawlers, checked . Checked for the live competitor post.