ChatGPT answers, unedited

Yes. For a freelance copywriter, I’d distinguish between two different questions:

1. “Can AI assistants access/read my article?”
2. “Are AI assistants actually mentioning or citing my article?”

If you mean #2, these are the most useful free options I found:

• frase.io — probably my first pick for your use case. You can enter a domain or individual URL, and it checks whether ChatGPT, Perplexity, and Gemini link to your content in AI answers. The ChatGPT result is free without signup. Frase
• rank.ai — particularly handy because it runs the same prompt through ChatGPT, Claude, and Gemini and shows whether your site was mentioned and cited. No registration required. Rank.ai
• ahrefs.com — free, no signup, and checks visibility across ChatGPT, Gemini, Perplexity, Copilot and Google AI Overviews. It's more brand/domain-oriented than article-excerpt-oriented. Ahrefs

The important catch for a writer

These tools generally don't prove that an AI assistant has memorized or reproduced your exact paragraph. They test whether your site/page is being discovered and cited in current AI/search answers.

If what you're really asking is:

“I wrote this particular article for a client. Can I find out whether ChatGPT/Claude/Perplexity are using passages from it?”

that's a harder problem. A visibility checker isn't quite the right test.

For that, I'd use a combination of:

• the exact article URL in Frase's checker;
• distinctive phrases from the article as prompts to ChatGPT/Perplexity;
• searches for whether those phrases or concepts appear in AI answers with your URL cited.

And one caution: AI visibility is quite volatile. Recent reporting, for example, found substantial changes in which sites ChatGPT cites over just a few weeks. axios.com

If you tell me whether you're trying to check (a) your own portfolio/blog articles or (b) articles you've written for clients, I can point you to the best free test for that specific situation.

Yes. For a freelance copywriter, I’d distinguish between “can AI access my article?” and “is AI actually quoting/citing my article?” Those are different tests.

Best free options

• citedspy.com — Probably the closest match to what you're asking. You enter a question, and it runs that query across ChatGPT, Perplexity, Gemini, Claude, and Grok, showing the answers and the sources they cite. You can then see whether your article URL appears as a source. Free and no signup. CitedSpy
• ahrefs.com — Good if you want to check whether your site/brand is being mentioned or cited across ChatGPT, Gemini, Perplexity, Copilot, and Google's AI results. It also identifies the specific pages being cited. Free, no signup. Ahrefs
• frase.io — Especially interesting for writers because you can enter a domain or specific URL. Its free check tests whether ChatGPT cites you; email unlocks additional Perplexity/Gemini results. Frase

For your particular use case

If you mean:

“I wrote this article. Is an AI assistant actually using sentences or ideas from my article when answering questions?”

I'd start with CitedSpy, rather than a generic “AI visibility score.”

Take an excerpt's main claim and turn it into 3–5 natural questions someone might ask an AI assistant. Run those questions through the checker and look for your URL in the citations.

One important caveat: a citation doesn't necessarily mean the AI copied your exact wording. And an AI assistant can use information from your article without visibly citing it. So no free grader can reliably tell you all instances where your prose has been incorporated into an AI response.

If you give me the URL of one of your articles, I can also show you exactly how I'd test whether its excerpts are surfacing in AI answers.

Yes. If by “showing up” you mean whether AI assistants are actually citing your articles/excerpts as sources, rather than merely whether AI can recognize your name, there are a few free options worth trying.

My picks for a freelance copywriter

1. Ahrefs Free AI Visibility Checker — best first stop
   • Free, no signup.
   • Checks ChatGPT, Gemini, Perplexity, Copilot, and Google AI Overviews.
   • Shows which domains/pages are being cited alongside your brand.
   • You can enter a personal brand, publication, or website, not just a company. ahrefs.com

Caveat: it's more of a brand/domain visibility check than a tool for testing one particular article excerpt.

2. EdenRank's free AI visibility checker — probably closest to what you're asking
   • Free and no signup.
   • Lets you enter a brand name + URL + prompt.
   • Tests the prompt across eight AI engines and returns the actual answers and citations.
   • This makes it useful for testing whether a particular piece of your work is being surfaced when someone asks a relevant question. edenrank.com

3. AI Search Visibility's free audit — good for individual URLs
   • Paste in a specific article URL.
   • Gives an AI-readiness/citation score and identifies things that may prevent AI systems from citing the page.
   • Free tier currently allows 5 audits/month. www.aisearchvisibility.ai

One important distinction

There are really two different questions you might want answered:

A. “Is my article being cited by AI?”
→ Use EdenRank or manually test the article's topic in ChatGPT/Perplexity and inspect the citations.

B. “Is my article structured in a way that makes AI likely to cite it?”
→ Use the AI Search Visibility audit or a similar GEO/content audit.

For a freelance copywriter, I'd actually do both. And I'd test the questions your clients' readers would ask, rather than asking an AI, “Does this article appear in your results?” For example, if you wrote an article about choosing CRM software, test 5–10 natural questions such as “What should a small business look for in a CRM?” and see whether your article appears among the cited sources.

If you give me one article URL (or the publication + title), I can show you a free, repeatable way to test whether that specific piece is appearing in ChatGPT, Perplexity, Gemini, and Google AI results.

Yes — but there’s an important distinction: most “AI visibility graders” check whether your website/brand is cited, not whether a particular article excerpt is being reproduced or surfaced.

For a freelance copywriter, I’d use these:

1. Ahrefs Free AI Visibility Checker — probably my first choice. It checks ChatGPT, Gemini, Perplexity, Copilot and Google AI Overviews, and shows which domains/pages are cited. No signup is required for the free checker. ahrefs.com

Best for: “Is my client's article/site actually being cited by AI?”

2. CitedSpy AI Visibility Checker — particularly interesting for your use case because it distinguishes being mentioned from being cited and gives the sources AI systems cite. Its free checker queries multiple AI engines. www.citedspy.com

Best for: “Is this content actually serving as a source?”

3. EdenRank Free AI Visibility Checker — lets you enter a brand, URL and a specific prompt, then checks eight AI surfaces and shows citations. edenrank.com

Best for: testing a question closely related to the article you wrote.

The catch for excerpts

If what you really mean is:

“I wrote this paragraph. Is ChatGPT/Perplexity/Claude using or quoting this paragraph when answering users?”

There isn't a single reliable free “plagiarism checker for AI assistants” that can tell you that comprehensively.

I'd do a two-part test:

• Put the article URL through an AI-visibility checker to see whether the page is cited.
• Then take 3–5 distinctive sentences/claims from your article and run natural-language questions around those topics through ChatGPT, Perplexity, Gemini and Claude. Look for your wording, distinctive facts, and—especially—your URL in the citations.

That second test matters because being cited ≠ having your wording reproduced. An AI might use information from your article without quoting it, or quote/closely paraphrase it without prominently identifying the author.

If you're trying to prove the value of your copywriting to clients, I'd actually recommend a simple before/after “AI citation report” workflow rather than relying on one grader. I can give you a free, 10-minute workflow for checking one article across ChatGPT + Perplexity + Gemini + Claude, including exactly what prompts to use.

Yes. If your goal is specifically “Is AI actually surfacing/citing my article or excerpts?”, I’d use a tool that checks URLs/pages, not just brand mentions.

Best free options

1. Frase AI Visibility Checker — probably the best fit for a freelance copywriter. You can enter a domain or specific URL, and it checks whether AI answers cite your content. Its free checker includes a ChatGPT result without signup. www.frase.io

2. Ahrefs Free AI Visibility Checker — excellent for seeing whether your brand/site is mentioned or cited across ChatGPT, Gemini, Perplexity, Copilot and Google AI Overviews. No signup required, although the free report is limited. ahrefs.com

3. EdenRank AI Visibility Checker — useful if you want to run an actual prompt and see the full AI answers plus citations across eight engines. It's free/no signup for one prompt. edenrank.com

One important distinction

There are really two different things you may want to measure:

• Citation: “Did ChatGPT/Perplexity actually link to my article?”
• Excerpt/passage use: “Did the AI reproduce or closely use information from my article, even without linking to it?”

The free tools are considerably better at measuring citations and mentions than proving that a particular paragraph was used. AI responses also vary by query, model, location, date, personalization, and whether web search is enabled.

For your use case, I'd start with Frase: paste the URL of one of your articles, then test several questions that the article is designed to answer. After that, use Ahrefs as a broader cross-engine check.

If you give me the URL of one article, I can also show you exactly how I'd test whether its excerpts are appearing in ChatGPT/Perplexity/Google AI answers.

Yes — but there’s an important distinction: “Is my site accessible to AI crawlers?” is not the same as “Is this particular article/excerpt actually being cited or surfaced in AI answers?”

For a freelance copywriter, I’d start with these:

1. Ahrefs Free AI Visibility Checker — probably the best free starting point. It checks visibility across ChatGPT, Gemini, Perplexity, Copilot, and Google AI Overviews, and reports which domains/pages are cited. No signup required. ahrefs.com

2. Semrush AI Search Visibility Checker — also free and no signup required. It looks at mentions, citations, prompts, and AI platforms including ChatGPT, Gemini and Google AI Overviews. www.semrush.com

3. IsVisible.ai — useful for a different question: whether AI crawlers can access your site at all. It checks robots.txt/llms.txt and access by crawlers such as GPTBot, ClaudeBot and Perplexity. Free, no signup. isvisible.ai

For your specific use case

If you're trying to answer:

“I wrote this article. Are AI assistants actually using/citing my article or passages from it?”

I'd use Ahrefs first, then manually test the article's distinctive claims/phrases in ChatGPT, Perplexity and Gemini.

The free graders aren't really plagiarism detectors for AI. They generally measure AI visibility/citations at the domain, brand, topic, or URL level. They can't reliably tell you that a particular paragraph was copied into an AI answer.

If you give me one of your article URLs, I can also show you exactly how I'd test whether its excerpts are surfacing in ChatGPT/Perplexity/Google AI — including a simple free workflow you could use for every client article.

If you’re a freelance copywriter trying to find out whether your article excerpts are appearing in AI assistants (ChatGPT, Claude, Gemini, Perplexity, etc.), there isn’t one perfect free “plagiarism checker for AI memory,” but these tools can help:

Best free options

1. Ahrefs Free AI Visibility Checker
   • Best for: seeing whether your brand/site/content is being mentioned or cited in AI answers.
   • Good if your articles live on your own website or a publication you can track.
   • It checks AI visibility across assistants such as ChatGPT, Gemini, Perplexity, and others. ahrefs.com

2. isvisible.ai AI Visibility Check
   • Best for: checking whether AI crawlers can access your site.
   • It won’t tell you “this exact paragraph appeared in ChatGPT,” but it shows whether your pages are available to AI systems and crawlers. isvisible.ai

3. Manual excerpt testing (still one of the most useful free methods)
   • Copy a distinctive sentence or 2–3 sentence excerpt from your article.
   • Search it in quotation marks on Google:
     • "exact sentence from my article"
   • Then ask several AI assistants:
     • “Where does this quote come from?”
     • “Have you seen this passage before?”
     • “Summarize sources discussing this topic and cite them.”
   • Repeat with multiple excerpts.

For freelance writers specifically, I’d use this workflow:

• Pick 5–10 unique passages from your published work (especially strong hooks, unusual phrases, original frameworks).
• Run exact-quote searches.
• Ask ChatGPT/Perplexity/Gemini to identify sources for those passages.
• Track whether your byline, portfolio site, or client publication is being cited.

A note: AI assistants usually do not provide a searchable database of everything they were trained on, so no free grader can reliably prove “ChatGPT memorized this excerpt.” What you can measure is AI visibility: whether your work is being retrieved, cited, or associated with you. ahrefs.com

If you mean “I want to know whether AI is quoting my writing without attribution” rather than “whether AI can find my work,” the best tools and method are a bit different.

Yes. If by “showing up” you mean “Does ChatGPT/Perplexity/Gemini actually mention or cite my article?”, there are a few free tools worth trying.

My picks for a freelance copywriter

1. Ahrefs Free AI Visibility Checker — probably the easiest starting point.
   • Free, no signup
   • Checks ChatGPT, Gemini, Perplexity, Copilot and Google AI results
   • Shows mentions, cited domains and cited pages
   • You can check a personal brand, product, or company—not just a generic brand. ahrefs.com

2. Frase AI Visibility Checker — particularly interesting for you because you can enter a specific URL/article, rather than only your brand. It checks whether AI answers link back to your content. The free version gives a ChatGPT result without signup. www.frase.io

3. RankSurf AI Visibility Scan — free scan that runs 10 industry-relevant prompts against ChatGPT and gives a per-prompt breakdown of mentions and citations. ranksurf.com

One important distinction

There's a difference between:

• AI can access your article — crawler/indexing test
• AI mentions your article/site — visibility
• AI cites/links to your article — citation
• AI reproduces information from your article — much harder to establish definitively

For a copywriter trying to demonstrate that their work has AI visibility, I'd focus on citation + mention, rather than claiming that an assistant has definitely “used” or “copied” an excerpt.

For example, take one of your articles and test prompts such as:

“What are the best sources for understanding [topic]?”
“What does [specific concept from my article] mean?”
“Summarize the current thinking on [topic].”

Then see whether your article URL appears among the sources.

If your real goal is specifically to find out whether individual excerpts/passages from your articles are appearing in AI answers, rather than whether your website is generally visible, I can narrow this down to the best free tool/workflow for that use case.

Yes — but there’s an important distinction: “AI visibility” graders usually tell you whether your page is likely to be crawlable/citable, while fewer free tools actually test whether AI assistants are currently citing your specific article.

For a freelance copywriter, I’d use these:

1. Frase AI Visibility Checker — probably the closest match to what you’re asking. You can enter a domain or individual URL, and its free check tests whether ChatGPT is citing you; email verification unlocks additional Perplexity/Gemini results. www.frase.io

2. Ahrefs Free AI Visibility Checker — good for seeing whether a personal brand, publication, or site is mentioned/cited across ChatGPT, Gemini, Perplexity, Copilot and Google AI Overviews. It also shows cited pages/domains. ahrefs.com

3. EdenRank free checker — useful if you want a quick, multi-engine spot check. It runs one prompt across eight AI engines and returns the answers and citations. edenrank.com

For your use case, I'd do this

If you have, say, 10 published article excerpts you're trying to demonstrate as AI-visible:

• Put each article URL into Frase.
• Ask 3–5 questions that the article is designed to answer.
• Check whether the AI response mentions your source, links to it, or paraphrases a distinctive passage from it.
• Separately use Ahrefs to see which of your pages are being cited more broadly.

One caveat: a grader can't reliably tell you that an AI assistant has “learned” your exact excerpt. AI answers change with prompts, location, search results, model version, and whether the assistant is using live web search. Even Frase describes its free check as a snapshot rather than permanent visibility. www.frase.io

If what you're really trying to prove as a freelance copywriter is “AI assistants are quoting/citing my published writing”, I can also give you the best completely free workflow for checking individual excerpts across ChatGPT, Perplexity, Gemini, and Google AI Overviews.

Yes. But there’s an important distinction: most free “AI visibility graders” tell you whether your site is accessible/citation-ready; fewer actually tell you whether a specific article or excerpt is being cited by AI assistants.

For a freelance copywriter, I’d start with these:

1. Ahrefs Free AI Visibility Checker — probably the best first stop. It checks ChatGPT, Gemini, Perplexity, Copilot, Google AI Overviews and AI Mode, and shows the domains/pages being cited. It’s free and says no signup is required. ahrefs.com

Best for: “Is my site/content actually showing up as a source?”

2. EdenRank AI Visibility Checker — particularly interesting for your use case because you can supply a specific prompt and see the AI's answer and citations across eight AI surfaces. Free, no signup. edenrank.com

Best for: Testing questions that your article is supposed to answer.

3. Frase AI Visibility Checker — has a free domain-level check for whether ChatGPT, Perplexity and Gemini cite your domain, plus a separate page-level GEO score. www.frase.io

Best for: Checking individual articles for “AI-citation readiness.”

The catch

If by “are my article excerpts showing up?” you mean:

“I wrote this particular paragraph for Client X. Is ChatGPT/Perplexity actually quoting or paraphrasing this passage when answering relevant questions?”

There isn't really a definitive free plagiarism-style grader for that. AI assistants generally paraphrase rather than reproduce passages verbatim, and their answers can change from one query to the next.

For that reason, I'd use a prompt-based test alongside the graders:

• Take the 5–10 questions your article is designed to answer.
• Run those exact questions through ChatGPT, Perplexity, Gemini and Google's AI results.
• Look for your URL as a citation, not merely your client's brand name.
• Compare the AI's answer against your article to see whether your distinctive facts, frameworks, examples or terminology made it into the answer.

That's actually more meaningful for a copywriter than a generic “AI visibility score.” Ahrefs itself distinguishes between an AI mention and a citation/link to your site. ahrefs.com

If you're trying to demonstrate this to clients, I'd use Ahrefs + a small before/after “AI citation report” showing which questions produce citations to their articles. That gives you a much more compelling freelance deliverable than simply saying “your article scored 78/100.”

Yes — but there’s an important distinction: most free “AI visibility graders” tell you whether a page is technically accessible/citable, while you want to know whether AI assistants are actually using your excerpts.

For a freelance copywriter, I’d use these:

1. Ahrefs Free AI Visibility Checker — best overall starting point.

It checks whether your brand/site appears in ChatGPT, Gemini, Perplexity, Copilot and Google AI Overviews, and shows mentions and cited domains/pages. It’s free and requires no signup. ahrefs.com

2. LaCleo AI Visibility Checker — best for individual articles.

This is closer to what you're asking: you paste a specific page URL, and it checks things such as extractable answers, citations, topical depth and whether Perplexity actually mentions/cites the page. www.lacleo.ai

3. SoulEngineLabs free GEO tool — interesting if you have drafts, not just published URLs.

It says you can submit a URL, draft article, keyword, or brand name and get a score based on citability, authority, structure and other factors. www.soulenginelabs.com

But here's the test I'd actually recommend

If you're trying to prove the value of your copywriting to clients, don't rely on a single “AI score.” AI visibility is variable: the same query can produce different answers over time, so repeated testing is more meaningful than one score. arxiv.org

For each article, take 5–10 questions that the article is designed to answer and run them through ChatGPT, Perplexity and Gemini. Record:

• Was the article/site cited?
• Was the author/client mentioned?
• Was a specific passage or fact from the article incorporated?
• Which competing sources were cited instead?

That's much more useful to a copywriter than something like “your page scored 82/100.”

If you give me the type of articles you write (e.g. SaaS, healthcare, finance, B2B, lifestyle), I can also point you to the best free checker specifically for that kind of freelance copywriting.

If you mean “Can I tell whether my article excerpts are being quoted, cited, or surfaced by ChatGPT/Claude/Perplexity?”, there isn’t a single perfect free grader yet. The best options depend on whether you want to check a specific excerpt or your overall AI visibility.

Best free options for a freelance copywriter

1. Manual AI citation test (most accurate for your own excerpts) — free
   • Paste your excerpt into a spreadsheet.
   • Ask several assistants:
     • “Find the source of this passage.”
     • “Have you seen this text before?”
     • “What websites or articles discuss this wording?”
   • Check whether the assistant cites your article or reproduces distinctive phrases.
   • This is the closest test for “is my writing appearing in AI answers?”

2. Ahrefs Free AI Visibility Checker
   • Good for checking whether a brand/site appears in AI answers across ChatGPT, Gemini, Perplexity, Copilot, and Google AI Overviews. ahrefs.comisvisible.ai
   • Less useful if you only have one freelance article excerpt and no recognizable brand.

3. isvisible.ai AI Visibility Checker
   • Checks whether a website is accessible to AI crawlers and whether systems can retrieve it. isvisible.ai
   • Useful if your articles live on your own site or a publication site you manage.

4. TopicPen AI Visibility Checker
   • Another free AI visibility checker focused on whether AI engines can find and cite content. go.topicpen.com

For a copywriter, I’d use this workflow:

• Pick a unique 8–12 word sentence from your article.
• Search that phrase in Google with quotation marks.
• Ask ChatGPT, Claude, and Perplexity the topic question your article answers.
• Look for:
  • your URL cited,
  • your publication named,
  • your phrasing reused,
  • your ideas appearing without attribution.

One caveat: AI assistants usually don’t have a “database of everything they’ve seen,” so a tool cannot reliably prove “ChatGPT trained on my article.” It can only test current visibility, retrieval, and citations. ahrefs.comisvisible.ai

If you’re a freelance copywriter trying to prove AI visibility to clients, the most useful metric is usually “AI citations/mentions,” not whether a model has memorized your exact excerpt.

Yes. If by “showing up” you mean whether an AI assistant actually cites or pulls from your published article, rather than simply whether your site is technically crawlable, there’s an important distinction.

Best free options for a freelance copywriter

1. urlAhrefs Free AI Visibility Checkerturn0search3 — best for actual AI mentions/citations
   • Enter your brand, personal brand, or website.
   • It tests prompts across ChatGPT, Gemini, Perplexity, Copilot, and Google AI Overviews.
   • The report shows mentions and which domains/pages are cited.
   • Free, no signup required, though the free report is limited. ahrefs.com
   • My pick if you're trying to prove that your work is being surfaced in AI answers.

2. urlIsVisible.aiturn0search0 — best for checking whether AI can access your articles
   • Free, no signup.
   • Checks robots.txt, llms.txt and access by AI crawlers such as GPTBot, ClaudeBot and Perplexity.
   • Gives an AI-visibility score. isvisible.ai
   • Caveat: this tells you whether AI systems can access your site—not whether a particular article is actually being cited.

3. urlAuditZap's free AI Visibility Checkerturn0search1 — best page-level technical check
   • You can enter a specific article URL, rather than just your domain.
   • Checks AI crawler access, semantic structure, citation readiness, freshness, author attribution, etc.
   • Free and doesn't require signup. auditzap.io

For your specific use case

As a freelance copywriter, I'd use Ahrefs first, then manually verify the results.

Take 5–10 distinctive excerpts from your articles and search for the ideas/questions they're designed to answer. For example:

“What are the best ways to reduce X without Y?”

Then run equivalent prompts in ChatGPT, Perplexity and Google AI Overviews and look at the actual citations. AI visibility isn't a simple yes/no metric: answers can vary by wording, location, model and date. troovue.com

One important caveat: there isn't currently a free equivalent of Google Search Console that can tell you every time an AI assistant used your exact paragraph. AI systems can retrieve a page without quoting it, or paraphrase it without making the source obvious. Recent research also finds that retrieval and what ultimately appears in an answer can diverge. arxiv.org

If you want, I can also give you a free 10-minute workflow specifically for a freelance copywriter to check whether individual articles are being cited by ChatGPT/Perplexity/Gemini—and turn the results into something you can show clients.

Yes. If your goal is “Are my actual articles/pages being mentioned or cited by AI assistants?”, I’d use an AI visibility checker, not a traditional SEO or plagiarism grader.

Best free options right now

1. Ahrefs Free AI Visibility Checker — my first pick
   • Checks ChatGPT, Gemini, Perplexity, Copilot, Google AI Overviews and AI Mode.
   • Shows whether your brand/domain is mentioned and which pages/domains get cited.
   • Free report, with no signup required. ahrefs.com

Ahrefs Free AI Visibility Checker

2. Frase AI Visibility Checker — best if you want to test a specific article URL
   • You can enter your domain or individual URL.
   • Looks at whether ChatGPT, Perplexity and Gemini link back to your content. www.frase.io

Frase AI Visibility Checker

3. FogTrail — useful for a broader multi-AI check
   • Checks ChatGPT, Perplexity, Claude, Gemini and Grok.
   • Reports whether you're cited, merely mentioned, or invisible for each query. fogtrail.ai

FogTrail Free AI Visibility Scan

One important distinction

If by “article excerpts are showing up” you mean “Is the AI literally reproducing sentences/passages from my article?”, these visibility tools aren't really designed to measure that. They're primarily measuring mentions and citations.

For a freelance copywriter, I'd do this:

Article URL → Frase to see whether the specific piece is being cited, then Ahrefs to see whether your expertise/domain is appearing across broader AI queries.

And don't treat a single AI answer as definitive—AI results can change substantially depending on the wording, date, and model, so visibility is inherently somewhat variable. arxiv.org

If you tell me where your articles are published (your own site, client sites, Medium, LinkedIn, etc.), I can recommend the best free workflow for checking whether your actual paragraphs are being picked up.

Yes. If by “showing up” you mean whether AI assistants are actually mentioning/citing your published articles, rather than merely whether your site is technically crawlable, I’d start with:

Best free options

1. urlAhrefs Free AI Visibility Checkerturn0search0 — best overall
   • Free, no signup.
   • Checks visibility across ChatGPT, Gemini, Perplexity, Copilot, and Google AI Overviews.
   • Shows mentions, topics that trigger them, and cited domains/pages.
   • Particularly useful if you write under your own name or for a recognizable publication/brand.

2. urlSemrush AI Search Visibility Checkerturn0search2 — good for a website/domain
   • Free and no signup.
   • Enter your domain and it checks visibility in ChatGPT, Google AI Overviews, and Gemini.
   • Better for getting a site-level picture than checking one particular paragraph.

3. urlAuditZap's Free AI Visibility Checkerturn0search3 — best for individual articles
   • Enter a specific URL.
   • Checks whether AI crawlers can access the page and whether the page has characteristics that make it easier for AI systems to understand and cite.
   • Important distinction: this is more of an “AI citation readiness” grader than proof that an assistant is currently citing your article.

One important caveat

There isn't really a free “paste my excerpt → tell me exactly which AI assistants are quoting this passage” grader that I would trust as definitive. AI responses are dynamic, and visibility varies by query, model, location, and time. Even AI-visibility research notes that measurement can be unstable across platforms. arxiv.org

For a freelance copywriter, I'd use a two-step test:

① Run your article URL through Ahrefs to see whether the site/page is appearing in AI answers.

② Then manually ask ChatGPT, Perplexity, Gemini, etc. the questions your article is designed to answer, and look at the citations. If your page repeatedly appears as a cited source, that's much stronger evidence that the actual content is being retrieved.

If you tell me where your articles are published (your own site, Medium, client sites, Substack, etc.), I can recommend the best free checker specifically for your situation.

Yes. If you mean “Can I paste my article/URL somewhere and see whether ChatGPT, Gemini, Perplexity, etc. actually mention or cite it?”, there are a few free options worth trying:

• Frase AI Visibility Checker — probably the closest match to what you're asking. You can enter a domain or specific URL, and its free check looks for whether ChatGPT, Perplexity, and Gemini cite you. The free version gives a ChatGPT result without signup. www.frase.io

urlFrase AI Visibility Checkerturn0search6

• Ahrefs Free AI Visibility Checker — checks whether AI systems mention your brand and shows the domains/pages cited alongside it. It tests ChatGPT, Gemini, Perplexity, Copilot and Google AI Overviews, though the free report is limited. ahrefs.com

urlAhrefs AI Visibility Checkerturn0search0

• rank.ai AI Ranking Checker — lets you enter a prompt plus your domain and checks ChatGPT, Claude and Gemini side-by-side, including whether your site is cited. It currently advertises a free check with no signup. www.rank.ai

urlrank.ai AI Visibility Checkerturn0search2

For a freelance copywriter, I'd start with Frase. The important distinction is that you don't really want an “AI detector” that says your writing looks AI-generated. You want an AI visibility/citation checker that tells you whether your published work is actually being retrieved and cited in AI answers.

One caveat: these tools give you a snapshot, not proof that an article will always appear. AI answers can vary substantially between runs and over time. arxiv.org

If you give me one article URL, I can also show you exactly how I'd test whether its excerpts are surfacing in AI assistants.

If your goal is to find out whether AI assistants (like ChatGPT, Claude, Gemini, Perplexity, etc.) are surfacing or citing your article excerpts, that's different from a traditional "AI detector." There isn't a perfect free grader, but there are a few useful tools.

Here are the best free or freemium options:

1. entity["company","Peec AI",""]
   • Tracks whether your brand or content appears in AI search engines.
   • Better for SEO professionals, but it has a free tier.
   • Good if you're monitoring multiple articles over time.

2. entity["company","Profound",""]
   • Measures AI visibility across assistants.
   • Primarily paid, but useful to know if you later need enterprise-level tracking.

3. entity["company","Otterly.AI",""]
   • Designed specifically for monitoring AI search results.
   • Offers limited free usage.
   • Lets you see whether your site is mentioned in AI-generated answers.

4. Manual testing (still one of the best free methods)
   • Ask the same question your readers would ask in:
     • ChatGPT
     • Claude
     • Gemini
     • Perplexity
   • Look for:
     • Direct citations
     • Verbatim or near-verbatim excerpts
     • Mentions of your publication
     • Links to your article

5. entity["company","Google Search Console",""]
   • Doesn't tell you if AI assistants quote you.
   • But it does show whether AI-generated search features are increasing impressions and clicks to your pages.

If you want to detect copied passages

If you're wondering whether AI assistants are reproducing your exact wording, use plagiarism tools instead:

• entity["company","Copyscape",""] (limited free search)
• entity["company","Duplichecker",""] (free)
• entity["company","Plagiarism Detector",""] (free)

These compare text against indexed web content, though they won't reliably detect content generated privately inside AI chats.

For freelance copywriters

A practical workflow is:

1. Publish your article.
2. Ask 10–20 realistic prompts in ChatGPT, Claude, Gemini, and Perplexity.
3. Record whether your article is cited, linked, paraphrased, or omitted.
4. Repeat monthly to see if visibility improves.

This is often more informative than an "AI detector" because it measures what potential clients and readers actually see.

If your goal is GEO (Generative Engine Optimization)—optimizing content so AI assistants are more likely to reference it—I can also recommend several free tools specifically for tracking AI visibility and citations.

If your goal is "Can AI assistants like ChatGPT, Claude, Gemini, or Perplexity find and quote my articles?", there isn't a perfect free grader—but there are several useful free or freemium tools.

Here are the ones copywriters and SEO professionals are using:

1. Peec AI – Tracks whether brands and pages are cited by major AI search engines. It has a free tier that's useful for limited checks.

2. Profound – Enterprise-focused AI visibility platform. Not really free, but worth knowing if you work with larger clients.

3. Goodie AI Search Grader – Lets you test prompts and see whether your site appears in AI-generated answers. Has a free version with limits.

4. Hall Analysis / AI Search audits – Some SEO agencies offer free AI visibility graders where you enter a domain and receive a report showing how often AI assistants reference it.

5. Manual testing (still surprisingly effective and free)
   • Ask ChatGPT Search, Gemini, Claude, Perplexity, and Copilot the questions your clients target.
   • Use prompts like:
     • "What are the best payroll software options for small businesses?"
     • "How do I choose an estate planning attorney?"
     • "What causes high bounce rates on ecommerce sites?"
   • Note whether your article, company, or wording is cited.

If you're checking specific article excerpts

There isn't a tool that reliably says, "This paragraph appears in AI assistants."

Instead, you can:

• Search for a distinctive 8–15 word phrase from your article in AI search tools.
• Ask:
  • "Where does this quote come from?"
  • "Can you identify the source of this passage?"
  • "Which website originally published this wording?"

This helps determine whether the assistant recognizes or attributes your work.

Best free workflow

For a freelance copywriter, I'd recommend:

• Use Goodie AI Search Grader or Peec AI to check AI visibility for a client's domain.
• Test 10–20 realistic prompts manually across ChatGPT Search, Perplexity, and Gemini.
• Keep a spreadsheet of:
  • Prompt
  • Whether your client's site appears
  • Citation position
  • Competitors cited
  • Whether the AI quotes or paraphrases your content

This gives clients a much more meaningful measure than traditional "AI detection" scores.

If your goal is specifically to determine whether AI models have memorized or are reproducing your writing verbatim, that's a different problem, and I can recommend tools and testing methods designed for that use case.

If your goal is to see whether AI assistants (ChatGPT, Claude, Gemini, Perplexity, etc.) are using or citing your content, there isn't a perfect free grader yet. However, there are several useful tools that approximate it from different angles.

Here are the best free or freemium options:

For a freelance copywriter, I'd use a combination:

1. Mangools AI Search Grader for a quick overall visibility score.
2. Goodie AI Search Grader to test article topics and prompts.
3. Peec AI if you want ongoing monitoring as you publish more content.

If you want to check a specific article excerpt

The most reliable manual workflow is:

• Copy a distinctive 1–2 sentence excerpt.
• Ask ChatGPT, Claude, Gemini, and Perplexity questions that should surface that information naturally.
• Note whether:
  • your wording appears,
  • your site is cited,
  • another source is credited instead,
  • or the assistant paraphrases the idea without attribution.

This is often more informative than a single "AI detector" score because today's assistants frequently paraphrase rather than quote directly.

If you're trying to build authority as a writer, I can also recommend free GEO (Generative Engine Optimization) tools that specifically score how likely your articles are to be cited by AI assistants, rather than just ranking well in traditional search.

If your goal is "Can I tell whether ChatGPT, Gemini, Claude, Perplexity, or AI search engines are using my writing?", there isn't a perfect free grader. Most AI detectors answer a different question ("Was this text written by AI?"), not "Is this text appearing in AI answers?"

The best free or freemium options are:

1. Profound (free trial) – Tracks whether your brand, website, or content is cited in AI assistants. It's designed for AI visibility rather than AI detection.

2. Peec AI (free tier) – Monitors how often AI search engines mention your content or brand and compares visibility against competitors.

3. Goodie AI Search Grader (free) – Lets you test prompts and see whether your site or content appears in AI-generated answers. Useful for freelancers optimizing clients' content.

4. Otterly.AI (free trial) – Checks visibility across ChatGPT, Perplexity, Gemini, and other AI search platforms over time.

5. Manual prompt testing (free) – Often the most revealing approach:
   • Copy a distinctive 1–2 sentence excerpt from your article.
   • Ask multiple assistants:
     • "What article is this from?"
     • "Who wrote this passage?"
     • "Summarize this article."
     • "What sources support this claim?"
   • Also search the exact phrase in Google using quotes to see where it appears.

If you're a freelance copywriter

What usually matters isn't whether the model memorized your text. It's whether AI assistants:

• cite your client's site,
• quote your wording,
• recommend your article, or
• synthesize information from it.

Those are the metrics that influence traffic and authority.

If you're trying to optimize content for AI discovery (sometimes called Generative Engine Optimization (GEO)), tools like Goodie AI Search Grader plus manual testing give a surprisingly useful free workflow.

If you want, I can also recommend the best completely free workflow for checking 20–50 article excerpts across ChatGPT, Gemini, Claude, and Perplexity without paying for enterprise AI visibility tools.

If your goal is "Can AI assistants like ChatGPT, Gemini, Claude, or Perplexity find and cite my articles?", traditional AI detectors aren't the right tool. Instead, you want AI visibility or LLM brand monitoring tools.

Here are the best free or freemium options:

If you're a freelance copywriter

A practical free workflow is:

1. Paste a distinctive sentence from your article into:
   • ChatGPT Search
   • Gemini
   • Perplexity
   • Claude
2. Ask:
   • "Summarize this topic and cite your sources."
   • "Who originally published this information?"
   • "What are the best sources on this topic?"
3. See whether your website is cited or referenced.

This often tells you more than an AI detector because it measures retrievability, not whether text "looks AI-written."

If you want to check individual article excerpts

Try searching Google with a quoted sentence first:

"your exact sentence here"

If Google indexes it but AI assistants never cite it, the issue is usually AI discoverability rather than indexing.

If you're trying to optimize for AI search (sometimes called GEO—Generative Engine Optimization), I can also recommend several free tools that score how likely your content is to be cited by AI assistants.