Is FreeCitation actually free?

Yes, completely free. FreeCitation supports APA 7th edition, MLA 9th edition, Chicago 17th edition, Harvard, IEEE, Vancouver, AMA 11th edition, Turabian, Oxford, and OSCOLA with no daily limits, no paywalls, and no account required. It is funded by ads, not subscriptions.

Do I need to sign up to use FreeCitation?

No. There is no signup, no email address required, no credit card, and no account of any kind. FreeCitation has no login system by design. You open freecitation.org and start generating citations immediately.

What citation styles does FreeCitation support?

FreeCitation supports APA 7th edition, MLA 9th edition, Chicago 17th edition (notes-bibliography), Harvard referencing, IEEE, Vancouver, AMA 11th edition, Turabian, Oxford, and OSCOLA. All styles are free with no limits.

How accurate are FreeCitation citations?

For DOIs, FreeCitation pulls directly from Crossref, the authoritative academic metadata registry used by publishers like Springer, Elsevier, and Wiley. For ISBNs it queries Open Library. For URLs it reads Open Graph metadata from the source page. DOI and ISBN citations are highly accurate. URL citations depend on how well the source page embeds metadata. Always verify citations before submitting academic work.

What source types can FreeCitation cite?

FreeCitation can cite websites (paste the URL), journal articles (paste the DOI), books (paste the ISBN), YouTube videos, news articles, academic papers, and more. For any source, paste what you have and the tool detects the type automatically.

Why is FreeCitation free when EasyBib and CitationMachine charge money?

EasyBib removed its free tier in 2021 and moved citations behind a Chegg subscription. CitationMachine has heavy upsell popups. FreeCitation was built as a clean alternative funded by non-intrusive ads instead of subscriptions. The tool does one thing: turn a URL, DOI, or ISBN into a properly formatted citation in seconds.

Can I save and export my bibliography?

Yes. Every citation you generate is saved automatically in your browser's local storage. You can view your saved bibliography, copy individual citations, and export the full list as plain text or Word format when you are done.

How do I cite ChatGPT in APA 7th edition?

The APA official format for citing ChatGPT is: OpenAI. (Year, Month Day). ChatGPT (Month Day version) [Large language model]. https://chat.openai.com. For the in-text citation, write (OpenAI, 2024). APA also recommends including the text of your prompt and the AI's response in an appendix, since the output cannot be retrieved by your reader.

Can I cite Claude or Gemini the same way as ChatGPT?

The format is the same but the author changes. For Claude (by Anthropic), use: Anthropic. (Year, Month Day). Claude (version) [Large language model]. https://claude.ai. For Gemini (by Google), use: Google. (Year, Month Day). Gemini (version) [Large language model]. https://gemini.google.com. The structure follows the same APA pattern — company, date, model name in italics, descriptor in brackets, URL.

Does MLA have a format for citing AI?

Yes. MLA 9th edition recommends treating AI-generated text as a work consulted, with the prompt you entered functioning as the title. The format is: 'Your prompt text here.' Response from ChatGPT, OpenAI, Day Mon. Year, chat.openai.com. MLA also recommends describing the AI tool and the nature of the interaction in the text of your paper.

Should I include AI in my bibliography?

If you used AI output in your paper and your professor or institution allows it, yes, you should cite it. Most style guides and academic institutions now require disclosure when AI is used. However, if your professor has prohibited AI use, you should not be using it in the first place. When in doubt, ask your professor before submitting, not after.

How do I cite AI when there is no stable URL?

This is a real problem. Most AI chat outputs cannot be retrieved by your reader because conversations are not publicly accessible. APA's solution is to describe the interaction and include the AI's response as an appendix in your paper. MLA acknowledges the limitation and suggests linking to the company website. The most important thing is transparency: describe what you asked, when you asked it, which AI you used, and what it said.

How to Cite ChatGPT, Claude and Other AI Tools as Sources (APA, MLA, Chicago)

You used ChatGPT to help explain a concept in your paper. Now your professor wants full citations in APA. The problem? There is no author, no page number, no stable URL your reader can visit, and the style guides were literally written before this technology existed. Good news: they have since caught up.

Why citing AI is genuinely weird

Normal citations exist for one primary reason: to let your reader go find the source you used and verify it. Every element of a citation — author, year, title, URL, page number — serves that goal. AI citations break this in two important ways:

Problem 1: No stable URL

Your ChatGPT conversation is private. Even if you share a link, the reader needs a ChatGPT account and there is no guarantee the link will work. Your reader literally cannot verify what you were told.

Problem 2: Outputs are not reproducible

Even if your reader types the exact same prompt into the same AI on the same day, they will likely get a different response. AI outputs are not stable facts, they are generated text that varies each time.

Style guides handle this by shifting the focus from "here is where to find this source" to "here is what I asked, here is what it said, here is when." Transparency replaces verifiability.

APA 7th edition: official ChatGPT format

The American Psychological Association published official guidance in 2023. The format for a reference list entry is:

OpenAI. (Year, Month Day). ChatGPT (Month Day version) [Large language model]. https://chat.openai.com

REAL EXAMPLE: APA 7TH CHATGPT CITATION

OpenAI. (2024, March 15). ChatGPT (March 15 version) [Large language model]. https://chat.openai.com

The in-text citation looks like this:

Parenthetical: The model described photosynthesis as a two-stage process (OpenAI, 2024).

Narrative: OpenAI (2024) described photosynthesis as a two-stage process involving light-dependent and light-independent reactions.

APA also recommends one extra step: include the full text of the prompt you used and the AI's complete response in an appendix to your paper. Since the reader cannot retrieve the conversation, the appendix is the verification mechanism.

APA in-text note for AI quote

When quoting AI directly, APA recommends adding a note in the text: "The following passage was generated by ChatGPT (OpenAI, 2024) in response to the prompt [describe prompt]; the full exchange is reproduced in Appendix A."

Citing Claude, Gemini, and Copilot in APA

The structure is identical. Swap the company and model name:

CLAUDE (ANTHROPIC) — APA 7TH

Anthropic. (2024, March 15). Claude (Claude 3 Sonnet version) [Large language model]. https://claude.ai

GEMINI (GOOGLE) — APA 7TH

Google. (2024, March 15). Gemini (Gemini 1.5 Pro version) [Large language model]. https://gemini.google.com

MICROSOFT COPILOT — APA 7TH

Microsoft. (2024, March 15). Microsoft Copilot [Large language model]. https://copilot.microsoft.com

MLA 9th edition: citing ChatGPT

MLA 9th edition updated its guidance on AI in 2023. MLA treats the prompt you entered as a kind of "title" for the work, which is an interesting approach. The format is:

"Your prompt text." Response from ChatGPT, OpenAI, Day Mon. Year, URL.

REAL EXAMPLE: MLA 9TH CHATGPT CITATION

"Explain the stages of photosynthesis in simple terms." Response from ChatGPT, OpenAI, 15 Mar. 2024, chat.openai.com.

For the in-text citation, MLA uses the first word or phrase from the "title":

ChatGPT described photosynthesis as a process with two distinct stages ("Explain the stages").

Chicago format: citing AI tools

Chicago 17th edition does not yet have fully standardized official guidance that has been as widely adopted as APA's, but the general approach is to use the Notes-Bibliography system and treat the AI like software with a specific access date. The footnote format is:

CHICAGO FOOTNOTE

OpenAI, ChatGPT, response to prompt "Explain the stages of photosynthesis," March 15, 2024, https://chat.openai.com.

CHICAGO BIBLIOGRAPHY ENTRY

OpenAI. ChatGPT. Response to prompt "Explain the stages of photosynthesis." March 15, 2024. https://chat.openai.com.

The question everyone actually has: should I cite AI at all?

There are really three separate questions inside this one:

Is AI use allowed in this assignment?

Check your syllabus or assignment brief. Many professors have specific AI policies. Some allow it for certain tasks (brainstorming, editing), some ban it outright, some require disclosure. This is a class policy question, not a citation question.

Should AI output be in your reference list?

If you directly used, quoted, or paraphrased AI output in your paper AND your institution allows AI use, then yes, cite it. If you used AI only for background understanding and nothing AI-generated appears in your paper, most style guides say you do not need to cite it (just as you do not cite a conversation with a classmate).

Is AI a reliable source for facts?

Honestly, no. AI tools hallucinate confidently. They generate text that sounds authoritative but can be completely wrong. If you want to cite a fact, trace it back to its original human-authored source and cite that instead. AI is a tool for thinking, not a primary source for academic claims.

When AI output should NOT be in your reference list

When you used AI only to brainstorm ideas that you then researched properly from real sources.
When you used AI as a grammar or editing tool (Grammarly, Copilot writing suggestions, etc.).
When your professor has explicitly said AI is not permitted on the assignment.
When you are citing a factual claim — always trace it to an original peer-reviewed source instead.
When the AI output is not actually present in your paper in any form.

Quick reference: all four AI tools across all three styles

AI Tool	Company (APA author)	URL	In-text (APA)
ChatGPT	OpenAI	chat.openai.com	(OpenAI, 2024)
Claude	Anthropic	claude.ai	(Anthropic, 2024)
Gemini	Google	gemini.google.com	(Google, 2024)
Copilot	Microsoft	copilot.microsoft.com	(Microsoft, 2024)

Frequently asked questions

What exactly is the 'version' I need to include in the APA citation?

APA suggests using the date of the specific conversation as a way to identify the version, since model versions change frequently and most users do not know which exact version they are talking to. You can write it as 'March 15 version' or just note the access date. If you do know the specific model version (like GPT-4o, Claude 3 Sonnet, Gemini 1.5 Pro), include that for more precision.

Can I cite a shared ChatGPT conversation link?

ChatGPT does allow you to generate a shareable link to a specific conversation. If that link works at the time of submission, you can use it as your URL instead of the generic chat.openai.com. This is actually better for your reader since they can see the actual conversation. However, there is no guarantee the link will remain active long-term.

Do I need to quote AI verbatim or can I paraphrase?

You can paraphrase AI output just as you would paraphrase a human author's writing. If you are paraphrasing, you still cite it in the same way (no quotation marks, but still include the in-text citation). If you are quoting directly, use quotation marks and include the in-text citation. In both cases, APA recommends the appendix with the full exchange.

Also useful: DOI vs ISBN explained, citing YouTube videos, and how to write a bibliography.