The best AI fact checkers
Short answer
The best AI fact checker for most people is the Originality.ai Fact and AI Hallucination Checker. It checks pasted text claim by claim, flags likely AI hallucinations, and has public pricing: 100 free one-time credits, then Pro at $14.95 a month (Originality.ai, checked 2026-10-29). Facticity.AI ranks second for checking social video links.
Prices and features checked on 2026-10-29
The top three
The leading tools on the current evidence.
- Top pick
Originality.ai Fact and AI Hallucination Checker, ranked 1
Best overall for checking AI-written text
Statements in text you paste, flagged as accurate or likely hallucinated
Facticity.AI, ranked 2
Best for checking claims in social video
Text, single claims, and TikTok, X or YouTube video links
Google Fact Check Explorer, ranked 3
Best for finding existing fact checks
Published fact checks, searched by text or image
The ranking
| Rank | Tool | What it checks | Price (checked 2026-10-29) | Verdict |
|---|---|---|---|---|
| 1 | Originality.ai Fact and AI Hallucination Checker | Statements in text you paste, flagged as accurate or likely hallucinated | 100 free one-time credits; Pro $14.95/month | Best overall for checking AI-written text |
| 2 | Facticity.AI | Text, single claims, and TikTok, X or YouTube video links | Free to start | Best for checking claims in social video |
| 3 | Google Fact Check Explorer | Published fact checks, searched by text or image | No price listed; open web tool | Best for finding existing fact checks |
| 4 | Snopes FactBot | Questions answered from the Snopes fact-check archive | No price listed; usable without login (beta) | Best for viral rumours and hoaxes |
| 5 | Loki (OpenFactVerification) | Claims split out of any text, checked against web evidence | Free, open source (MIT licence) | Best for technical users who want control |
| 6 | Factiverse | Claims in text, audio and video, checked against evidence | Not published; demo booking only | Best for teams working in many languages |
| 7 | Full Fact AI | Check-worthy and repeated claims across media, for professional fact checkers | Paid licence for organisations; price not published | Best for newsrooms and fact-checking organisations |
The ranking is for people checking what an AI tool told them, or checking AI-written text before they use it. Tools built for newsrooms rank lower here because most readers cannot buy or use them.
An AI fact checker is a second opinion, not a verdict: open the evidence it cites before you trust its label.
The fact checkers, one by one
Rank 1: Originality.ai Fact and AI Hallucination Checker
- What it checks
- Statements in text you paste. It flags inaccurate statements and likely AI hallucinations, alongside Originality.ai's AI detection and plagiarism checks (product page).
- Coverage
- Any text you can paste, billed by length: 1 credit covers 100 words.
- Best for
- Students, writers and editors checking a draft that an AI helped write.
- Main limitation
- Credits run out on long documents, and a flagged statement still needs a source you have opened.
Choose it ifyou want to paste a full draft and see which claims to check first.
PriceFree plan with 100 one-time credits. Pro is $14.95 a month, or $12.95 a month billed yearly. Enterprise is $179 a month, or $136.58 billed yearly. The fact checker is included in all plans (Originality.ai pricing, checked 2026-10-29).Rank 2: Facticity.AI
- What it checks
- Text, single claims, and links to TikTok, X or YouTube videos. It also has a Chrome extension (Facticity.AI).
- Coverage
- Written claims plus claims made in TikTok, X and YouTube videos, checked from a pasted link.
- Best for
- Checking a claim you saw in a short video or a post.
- Main limitation
- Its labels still need reading against the sources it cites, and paid plan details should be confirmed on its site before you subscribe.
Choose it ifyour claims come from social video more than from documents.
PriceFree to start, per its homepage (checked 2026-10-29).Rank 3: Google Fact Check Explorer
- What it checks
- Fact checks that publishers have already written, found by searching text or an image. It does not judge new claims itself (Google, 2023-06-29).
- Coverage
- Fact checks published with ClaimReview markup. Google also offers a Claim Search API.
- Best for
- Finding out whether a claim has already been checked by a professional fact checker.
- Main limitation
- If nobody has fact-checked the claim yet, it has nothing to show you.
Choose it ifthe claim is in the news and you want a professional's verdict.
PriceNo price listed; an open web tool at Fact Check Explorer (checked 2026-10-29).Rank 4: Snopes FactBot
- What it checks
- Your question, answered from the Snopes fact-check archive (Snopes FactBot).
- Coverage
- Rumours, hoaxes and viral claims that Snopes has covered.
- Best for
- A quick read on whether a viral claim is true.
- Main limitation
- It only knows what Snopes has written about. The page itself warns users to check the cited sources.
Choose it ifyou want a plain answer on a rumour in seconds.
PriceNo price listed; usable without a login while in beta (checked 2026-10-29).Rank 5: Loki (OpenFactVerification)
- What it checks
- It breaks text into separate claims, searches for evidence and labels each claim (Libr-AI on GitHub).
- Coverage
- Any text you run through it, using the language model and search service you connect.
- Best for
- Developers and researchers who want to run or adapt a checker themselves.
- Main limitation
- It needs setup and your own API keys, and its results depend on the model you plug in.
Choose it ifyou are comfortable on the command line and want full control.
PriceFree and open source under the MIT licence. You supply your own LLM and search API keys. The repository had 1.2k stars when checked on 2026-10-29.Rank 6: Factiverse
- What it checks
- Claims extracted from text, audio and video, checked against evidence. Factiverse is a Norwegian tool and says it covers 114 languages (Factiverse).
- Coverage
- Many languages and formats, aimed at professional use.
- Best for
- Teams that check claims in several languages or in audio and video.
- Main limitation
- No self-serve plan, so you cannot try it the same day.
Choose it ifyou work in an organisation and need multilingual checking.
PriceNot published; access is by demo booking (checked 2026-10-29).Rank 7: Full Fact AI
- What it checks
- It monitors media to find check-worthy and repeated claims for professional fact checkers (Full Fact AI).
- Coverage
- Used by more than 40 fact-checking organisations in 30 countries, per Full Fact (checked 2026-10-29).
- Best for
- Newsrooms and fact-checking teams tracking claims at scale.
- Main limitation
- Not a consumer checker. You cannot paste in one answer and get a verdict.
Choose it ifyou run a fact-checking desk.
PricePaid licence for organisations; price not published.
How we ranked
Each tool was ranked on three things that can be confirmed on its own pages, all checked on 2026-10-29:
- What it checks. Tools that check new claims in your own text rank above tools that only search existing fact checks, because AI answers are usually new text.
- Coverage. Formats (text, video, audio, images), languages, and whose evidence the tool draws on.
- Price and access. Public, self-serve pricing ranks above demo-only or organisation-only access, because most readers want to start today.
Treat any tool's label as a pointer to evidence, and read that evidence. How we handle vendor statements is on how we score AI accuracy and editorial standards.
Do you need a fact checker at all?
Often you need a habit more than a tool. AI assistants get facts wrong at rates that make checking worthwhile: in NewsGuard's August 2025 audit, 10 leading chatbots repeated false news claims 35% of the time on average (NewsGuard, 2025-09-04). Which assistants do best is on the most accurate AI assistants.
The five-step routine on how to fact-check an AI answer works with free tools and covers claims, sources, numbers, dates and quotes. Fake references are a special case, covered on does ChatGPT make up sources. A fact checker speeds up the first pass. The final check is still you opening the source.
Sources
Every result in this ranking comes from one of these.
- Vendor claim
- News audit
Questions
Short answers, with links to the dated evidence.
Which AI fact checker is best?
The Originality.ai Fact and AI Hallucination Checker is the best pick for most people checking AI-written text. It flags inaccurate statements and likely hallucinations in pasted text, and offers 100 free one-time credits before Pro at $14.95 a month, as checked on 2026-10-29. Facticity.AI is the better pick for claims in TikTok, X or YouTube videos.
Is there a free AI fact checker?
Yes. Loki is free and open source under the MIT licence, though you supply your own API keys. Google Fact Check Explorer and Snopes FactBot list no price and are open on the web, as checked on 2026-10-29. Originality.ai gives 100 free one-time credits, and Facticity.AI is free to start.
Can an AI fact checker catch hallucinations?
It can flag likely ones, which saves time. Originality.ai's checker is built to flag inaccurate statements and likely AI hallucinations in pasted text. But a flag is a pointer, not proof. Snopes' own FactBot page tells users to check the cited sources. Open the evidence behind each label before you accept or reject a claim.
Can I use ChatGPT to fact-check itself?
Not reliably. In the Tow Center's March 2025 test, ChatGPT Search named the wrong source for 134 of 200 news excerpts, and NewsGuard found ChatGPT repeated false news claims 40% of the time in August 2025. Asking the same tool to check its own answer tends to repeat the same mistake. Check against an outside source instead.
How do I fact-check without a tool?
Pull out each factual claim, then search it yourself. Open any source the AI gave and confirm it says the same thing. Check numbers and dates against the original document. Search quotes word for word. Look up legal or academic citations in their own databases. Our five-step routine on how to fact-check an AI answer covers each step.
