Study

Can You Copy the Source Links in an AI Answer Into Your References?

AI answers often come with source links. A study published on October 15, 2026, found that these lists differ from service to service and often change when you ask the same question again. Your paper's references should list the original sources you followed those links to and read, not the links themselves, and your AI use should be disclosed separately.

The same question can produce a different source list

The sources beneath an AI answer are not a fixed list. The "Generative AI Citation Report, Second Half of 2026", published by BrAInd on October 15, 2026, shows in numbers how sources differ by service and from one asking to the next[1]. BrAInd is a Korean service, run by a digital marketing company, that measures which sources AI answers cite.

Even the types of sources cited differed by service. Naver Blog made up 46.5% of the sources cited by Naver AI Briefing and 7.7% of those cited by Google AI Overviews, while Gemini and ChatGPT answers did not cite Naver Blog at all[1]. In Google AI Overviews, Gemini, and ChatGPT, general websites such as company, shopping, wiki, and overseas sites were the largest group, at 55.7-78.5%. News sites accounted for 1.4-3.5% across all four services[1]. The source type shown for each service in the table below is the largest category once those general websites are set aside.

Source lists also changed within the same service. When the same search query was asked again, the rate of re-citing the same sources as the previous answer was 74.5% for Naver AI Briefing and 16.0% for ChatGPT. That rate compares each answer collected over the 30 days with the one before it. In a separate check, 405 search queries were put to Gemini and ChatGPT twice, about three hours apart, and the overlap between the two citation lists was 33.1% for Gemini and 23.3% for ChatGPT[1]. The overlap is calculated by pooling the sources from both lists and finding what percentage appear in both.

Some answers had no source links at all. This was the case for 35.8% of Gemini answers and 6.6% of ChatGPT answers. Only 1.5% of Google AI Overviews answers had no links, but counted source by source, 34.9% of its cited sources appeared as site names without links[1].

The study did not examine academic questions. It covered 635 search queries that did not contain brand names, drawn from queries for 26 brands monitored by BrAInd. Over 30 days, from August 26 to September 24, 2026, it collected 21,225 answers and 85,392 linked sources. BrAInd stated that the study observed patterns occurring together without establishing their causes, and that results could differ across industries or periods[1].

So you cannot expect the same rates when you ask about your paper's topic. Still, within this study the source list was not fixed by the wording of the question; it varied with the service and the time of asking. References are a list that lets readers find the same material again. Copying a list that may change the next time you ask does not serve that purpose.

ServiceTop source type, excluding general websitesSources cited again from the previous answerAnswers with no source links
Naver AI BriefingNaver Blog 46.5%74.5%0%
Google AI OverviewsYouTube and social media 29.4%51.4%1.5%
GeminiBlogs outside Naver, such as Tistory and Brunch 13.1%36.2%35.8%
ChatGPTPublic institution and organization sites 18.0%16.0%6.6%

Treat an AI answer like a search results page

When you ask AI to find material, its answer sits where a search results page would. On September 9, 2025, the APA Style team at the American Psychological Association, which provides guidance on APA citation style, published an article addressing this issue. It explained that AI generally does not need to be cited when used like a search engine to find information[2]. The principle is the same as citing material found through Google: you cite the source you read, rather than the search results page.

The same article added several cautions. Check whether the AI has supplied sources, then open them yourself to confirm that they exist. Read them to judge whether they are reliable and suit your paper. It also cautioned against stopping your research after asking AI and citing only the AI[2].

Korea's national guidance for universities also requires checking sources. South Korea's Ministry of Education issued its "Guidelines on the Ethical Use of AI in Universities" to universities in August 2026. The guidelines state that students must check the factual accuracy of work produced using AI. For academic material, they say it is essential to verify AI-generated information against reliable sources[3].

One of the verification examples in the guidelines is to treat AI-generated information as a secondary source[3]. A secondary source is material in which someone else reproduces or summarizes original research or records. Treating an AI answer as a secondary source means the next step is to find and read the primary sources it relies on.

From a link to the original source

To turn a link into a reference entry, first open it. The work is complete only when you reach the document that originally published the information. Check whether the document actually contains the information the AI attributed to that link, and whether its numbers and dates match the answer.

If the linked page draws on another source, trace it back to the original publication. If a blog draws on a news article and the article draws on a report, find and read the report, then list the report in your references. The study figures in this guide were first found in two news articles. After opening the report page published by BrAInd and checking the figures one by one, we listed that page in the references.

For a research paper, open its DOI. A DOI is a unique identifier assigned to scholarly material. In a 2023 article, the APA Style team described asking ChatGPT for supporting sources. It received five references, but could find only four online. The remaining reference did not appear to be a real paper, and its DOI belonged to a different paper[4]. A working DOI is not enough. Check that the title and authors of the paper it opens match the answer.

When a source appears only as a site name without a link, search for the original using its title or a key sentence. Leave out information if you cannot find its source. For documents you find, note the URL and the date you opened them. APA explains that retrieval dates are used only for unarchived material designed to change over time, and are omitted from most references[5]. Even when that date does not belong in the reference entry, your note can help you find the same document later.

Before adding a reference entry, check all four points below.

  • The document contains the information the AI attributed to the link, and the numbers and dates match.
  • It is the original document, rather than a page reproducing or summarizing another source.
  • If there is a DOI, the paper it opens has the same title, authors, and year.
  • You have noted the URL and the date you opened it.
References copied directly from an AI answer's links
References1. https://blog.naver.com/(user ID)/(post number)2. ChatGPT answer (October 14, 2026)3. (A source shown only as a site name, without a link)
References revised after tracing links to the original sources
ReferencesBrAInd. (2026). 생성형 AI 출처 인용 리포트 2026년 하반기 [Generative AI citation report, second half of 2026]. (report page URL)(Located the report summarized by the blog and cited its original page.)McAdoo, T., Denneny, S., & Lee, C. (2025, September 9). Citing generative AI in APA Style: Part 2: AI as a search engine and AI integrated into common software. APA Style. (article URL)(Opened the guidance used to support the ChatGPT answer and cited that article.)(Could not find the original source for the site name, so removed both the source and the sentence it supported.)

When AI belongs in your references

Include AI in your references when you use its generated text itself as evidence or as material for analysis. For example, if your paper asks four AI services the same question and compares their answers, those conversations are your source material. In its September 2025 guidance, the APA Style team provided a reference format for specific conversations in cases like this[6].

The format has four elements. The author is the company that made the AI tool. APA explains that AI itself cannot be an author. The date is the day the conversation took place. The title is the conversation title, followed by a short description of the material in square brackets. The source consists of the tool or model name and the conversation's share link[6].

Two things have changed since the 2023 guidance. At that time, readers could not revisit a conversation, so the guidance was to cite only the tool. Most AI chat tools now have sharing features, making it possible to cite the conversation itself. Version numbers are no longer included by default; include the model name if you know it[6].

Prompts do not go in the reference entry. Describe the questions you asked and how you revised them in the main text or an appendix. If you used AI to revise or translate your writing, cite the tool as a whole rather than the conversation, and explain in the main text where you used it[6].

APA reference templates for AI
Specific conversation: Company name. (Year, Month Day of conversation). Conversation title [Generative AI chat]. Tool or model name. Conversation share linkTool as a whole: Company name. (Year). Tool or model name [Large language model]. Tool URLIn-text citation: (Company name, Year)APA's example: OpenAI. (2025). ChatGPT [Large language model]. https://chatgpt.com/
SituationWhat to include in your referencesWhat else to do
You followed a link in an AI answer, read the original source, and used its content.The original source you readIf your course requires disclosure of AI use, follow its instructions.
You copied AI-generated sentences or lists verbatim.That conversation: company, date, conversation title, and share linkInclude the prompts in the main text or an appendix.
You used AI to revise or translate your writing.The tool as a whole: company, year, tool name, and URLExplain in the main text where you used it.
You could not find the original source for information supplied by AI.Do not include it.Remove that information from the main text too.

Disclose AI use separately from your references

References and AI-use disclosures serve different purposes. References let readers find your evidence; an AI-use disclosure records what you used to produce your writing. An accurate reference to an original source does not, by itself, disclose your AI use.

South Korea's Ministry of Education guidelines cover university classes, assignments, and exams, but not research activities. They state that students who use AI for assignments, presentations, or exams must disclose that use in the manner specified by their instructor. Submitting work without disclosure may be treated as a problem equivalent to failing to cite a source[3]. The guidelines also say to follow the instructor's prescribed citation and referencing method, or consult a style guide such as APA or MLA if no rules have been set[3].

APA generally does not require a citation for AI used only to search, while the ministry's guidelines require disclosure according to course rules. Course policy determines how to handle the apparent difference between these standards. The guidelines recommend checking the syllabus and course announcements because AI policies vary by class. If permission to use AI is unclear, they advise checking with the instructor in advance[3].

Collect the information needed for disclosure as you research. Note which service you asked, when, and what you asked; which links in its answers you followed and which original sources you used; and which information you discarded because you could not find the original source.

From checking sources to a reference list in the editor

Select "Cite" in the editor toolbar to open "Sources and citations". For an original source with a DOI, enter the DOI in "Find by DOI or title" to import the bibliographic information registered with Crossref. Crossref is an organization that registers DOIs for scholarly material and manages bibliographic information.

For reports and web documents without a DOI, choose a source type under "Enter manually" and enter the URL. These entries receive a "Check" label. It means the information was entered manually without a lookup, so you should compare it with the original source again before submitting. You can also use "RIS or BibTeX file" to import RIS files downloaded from RISS or DBpia and BibTeX files exported from Zotero.

After inserting citations in the main text, choose a style from APA 7, MLA 9, Chicago, IEEE, or Harvard. Select "Insert reference list" under "Paper" to place the list beneath the references heading, or at the end of the document if there is no heading. You can also choose "Korean sources first" to list Korean-language sources first in Korean alphabetical order.

Record your AI use in "AI use report" under "Paper". Enter AI use from other services in "AI used elsewhere". If you add a conversation share link, it is included in the statement. Describe how you found and checked the original sources in "My contribution". Before submitting, reopen the original sources for entries labeled "Check" and verify the authors, years, and titles.

References

  • [1] BrAInd, "Generative AI Citation Report, Second Half of 2026", October 15, 2026. (In Korean.)
  • [2] APA Style, "Citing generative AI in APA Style: Part 2: AI as a search engine and AI integrated into common software", September 9, 2025.
  • [3] South Korea's Ministry of Education, "Guidelines on the Ethical Use of AI in Universities", August 2026.
  • [4] APA Style, "How to cite ChatGPT", April 7, 2023.
  • [5] APA Style, "Elements of reference list entries".
  • [6] APA Style, "Citing generative AI in APA Style: Part 1: Reference formats", September 9, 2025.

Frequently asked questions

What if I cannot find the original source?

Leave it out of your paper. If you find the same fact in another source, read and cite that source. An AI answer alone gives readers no way to verify the information.

Do I need to disclose AI use if I only used it to search?

Follow your course policy. APA generally does not require an AI citation when AI is used like a search engine. South Korea's Ministry of Education guidelines say that AI use in an assignment should be disclosed as instructed by the instructor. If the syllabus does not specify a policy, ask your instructor before submitting.

Must I include an access date in my references?

APA 7 omits retrieval dates from most references, using them only for unarchived material designed to change over time. Other styles or departmental formats may require them, so check the assignment instructions. Even if the date is not included in your references, note when you opened the source.

Does a DOI mean the paper actually exists?

Not necessarily. A reference produced by AI can carry another paper's DOI. That happened with one of the references the APA Style team received from ChatGPT in 2023. Open the DOI and check that the paper's title, authors, and year match the answer.