Does ChatGPT Use Reddit? Training, Deal and Citations
Yes, in three separate ways: Reddit content may be part of the training data, OpenAI is reported to have a partnership with Reddit, and ChatGPT may open Reddit threads during web search. Reddit links have shown up in ChatGPT's visible citations far less since mid-August 2026, according to Promptwatch figures relayed by ChatGPT.
By Raúl Díaz, founder of Slibur
5 min read
In this article
Short answer: yes, in three different ways
People mix up three different things when they ask this question. Keep them apart and most of the confusion goes away.
Training data
When we asked ChatGPT itself on 2026-11-04, it answered that OpenAI says it uses publicly available internet content, and it listed Reddit discussions and public forums among the examples, citing an openai.com page. So public Reddit posts may be part of what the models learned from.
That is a long way from "GPT was predominantly trained on Reddit", a viral claim that circulates without a clear source. Nobody outside OpenAI can state the exact mix of training data.
The OpenAI-Reddit partnership
OpenAI is reported to have a partnership with Reddit. We could not verify its terms from our sources, so we treat it as a business agreement, covered in the next section.
Live web search
When ChatGPT searches the web, it may open Reddit threads like any other page. This is the channel where citations appear as links under an answer, and it is the one that changed in August.
What the OpenAI and Reddit partnership actually covers
Whatever its terms, a partnership like this is not a promise about what ChatGPT will show you. We have no source saying Reddit links will appear in every answer, or that Reddit will rank above other sources.
What a product cites, and how often, is a separate decision from any business agreement.
The August 2026 drop in Reddit citations
According to Promptwatch figures relayed by ChatGPT, Reddit's visible share of ChatGPT citations fell sharply in mid-August 2026. Here is how the numbers fit together.
What the numbers say
When we asked ChatGPT why Reddit citations dropped, its answer attributed the figures to research by Promptwatch published August 20, 2026: 3.83% for July 18 to August 7, then 0.52% for August 14 to August 17, an 86.4% decline.
That explains the "about 86%" figure. It is a relative drop between two short windows: from 3.83% to 0.52%. The two numbers do not conflict. One is the starting share, the other is the size of the fall.
Two cautions. These are third-party measurements of one prompt set, and the end window is only four days long. Nobody has said officially why it happened, and ChatGPT's own answer called it an apparent reduction in visible citations, not an official change.
Cited is not the same as read
A citation is a link shown to the user. A search is something ChatGPT does in the background. The two can differ.
A model can run a query, open a page, use what it says and then show no link for it. So a drop in Reddit citations does not prove Reddit stopped being read. Some people claim it is still reading Reddit, but that is not something we can confirm.
For a brand, the practical point is simple: a missing link is not proof of no influence, and a present link is not proof of a recommendation.
Do other AI assistants still cite Reddit?
We have no verified figures for other assistants. Citation shares depend on the prompts tested, the country and the date, so two studies can disagree and both be honest.
To know about your own topic, test your own questions. Google documents how its AI features pick links on its AI features page for site owners (opens in a new tab), which is a better base than a viral screenshot.
Slibur dataChatGPT, United States, 4 answers, November 4, 2026
We asked ChatGPT about Reddit and its sources
On 2026-11-04 we asked ChatGPT (chatgpt.com, logged out, with web search, from the United States) four questions, and all four were answered. The questions were: "Does ChatGPT use Reddit?", "Why did ChatGPT stop citing Reddit?", "Which tools show what sources ChatGPT cites for a topic?" and "How do I check if AI assistants cite Reddit for my industry?".
Across the four answers, ChatGPT named 17 distinct brands and cited 15 distinct sites.
For the first question, the brands named were Reddit and OpenAI, and the only site cited was openai.com. For the second, it named Reddit, Promptwatch, Brooks, Yahoo Tech, Ahrefs and Search Engine Journal, and cited promptwatch.com and searchenginejournal.com.
The comparison with Google is the odd part. Of the 15 sites ChatGPT cited, 0 also rank in Google's top 10 for "does chatgpt use reddit". And all 3 top-10 domains (reddit.com, techrepublic.com, linkedin.com) went uncited.
So in this run, ChatGPT did not lean on Reddit for a question about Reddit. It cited the company's own page and a few industry sites instead.
This is a snapshot of four questions on one day from one logged-out setup, not a study. Don't draw a general rule from it.
What this means if you want your brand mentioned
Treat Reddit as one possible source, not as the plan. A share that fell from 3.83% to 0.52% suggests a single platform can lose weight in ChatGPT's citations quickly, though those figures cover one prompt set and a four-day window.
Reddit is one source among many
Nothing we have says that posting on Reddit leads to ChatGPT mentioning you, so don't promise that to anyone. Useful Reddit participation can still help people find you directly, and threads can still be read in the background.
Spread your effort instead. Make sure your own pages answer the question plainly, and check that AI crawlers can reach them. OpenAI lists its bots and how to control them in its crawler documentation (opens in a new tab), and our free AI crawler checker tests whether GPTBot and others can read your site.
For what makes ChatGPT recommend a business, read our guide on how to rank in ChatGPT.
Check what ChatGPT cites for your questions
Pick five questions your customers actually ask. Run each in a logged-out chatgpt.com session with web search on, and write down every site it cites. Count how many are Reddit.
Repeat it weekly, because the answers move. By hand, that gets tedious fast.
Slibur's ChatGPT visibility tracker automates this: it asks the questions, then lists the cited sources by domain and frequency, shows whether each is yours, a competitor's or a third party's, and shows the searches the AI ran. That tells you if Reddit matters in your niche or not. It measures ChatGPT logged out with web search, so it reflects that setup only. There is a 7-day free trial with no card.
What ChatGPT can't do on Reddit
ChatGPT does not post, comment or moderate on Reddit for you out of the box. Automating posts would take extra tooling beyond ChatGPT itself.
If you want help drafting a reply, you can paste a thread into ChatGPT and ask for a draft. You still post it yourself, and you should follow each subreddit's rules on AI-written text.
Frequently asked questions
Does ChatGPT source from Reddit?
Yes, in some ways. OpenAI says it uses publicly available internet content, and it has a reported partnership with Reddit. ChatGPT may also open Reddit threads during web search. Whether a Reddit link appears in a given answer varies by question and date.
Was ChatGPT trained mostly on Reddit?
There is no source for that claim. It circulates without evidence. OpenAI says public Reddit discussions are among the content it uses, alongside blogs, websites, articles and licensed information, but the exact proportions of training data are not public.
Why did ChatGPT stop citing Reddit in August?
No official reason has been given. Promptwatch research, as relayed by ChatGPT, put Reddit at 3.83% of citations from July 18 to Aug 7 and 0.52% from Aug 14 to Aug 17. When we asked, ChatGPT called it an apparent reduction in visible citations, not an official policy change.
Does ChatGPT still read Reddit if it doesn't cite it?
Possibly, but it can't be confirmed from outside. A citation is only a link shown to the user, while searches and page reads can happen in the background without a link.
Do other AI assistants still cite Reddit?
We have no verified figures for them. Citation shares differ by prompt set, country and date, so test your own questions instead of relying on one number.
Should I still post on Reddit to get my brand mentioned by AI?
Don't rely on it. Nothing in the evidence shows that Reddit activity leads to ChatGPT mentions, and its citation share fell fast in August 2026. Participate where it helps real readers, and also make sure your own pages answer your customers' questions clearly.
Raúl Díaz is the founder of Slibur, the tool that asks ChatGPT, Google AI Overviews, Claude, Perplexity and Grok the questions your customers ask and shows which brands they recommend. He writes about answer engine optimization from the data Slibur collects.
This article was drafted with AI assistance from our own data and a read of the top results at the time of writing, then checked before publishing. How we write the blog