Paste a claim, a URL, or a forwarded message. Six AIs verify it in parallel. You get one verdict, an agreement score, and the disagreements named. Five free fact-checks per day — no signup required to start.
Asking ChatGPT to fact-check something is asking one model to validate its own kind of error. Large language models hallucinate confidently. They cite sources that do not exist, repeat well-formatted misinformation if it appeared often in training data, and round soft uncertainty to assertive answers. A single model has no incentive to flag the cases where it would be wrong.
Multi-model fact-checking changes the failure surface. Six models trained by six different teams rarely fail in the same way at the same time. Where they all agree, the claim is likely true. Where they diverge, the claim sits in genuinely uncertain territory — and that signal is the difference between informed and overconfident.
Paste a claim or URL
A news headline, a viral tweet, a paragraph from an article, a forwarded message. Anything you want to verify.
Six AIs analyze it in parallel
Claude, GPT, Gemini, Mistral, Grok, and Perplexity (with live web search) each verify the claim independently.
One verdict + agreement score
Satcove returns a single answer — supported, contradicted, or unclear — with the explicit agreement score and points of divergence.
More cases on the AI fact-checking benchmark page.
The free tier covers casual fact-checking. Journalists, researchers, and content moderators usually hit the daily limit fast and move to Pro for higher limits, the premium model tier (Claude Sonnet, GPT-5), and access to Privacy Shield for anonymizing claims before they reach providers. See the pricing page for the full breakdown.
We provide a free embeddable widget for journalists, bloggers, educators, and fact-checking organizations. Your visitors can fact-check claims directly on your page without leaving the site, and the widget surfaces the agreement score and source citations. Reach out via the contact page for the embed code.
Is your AI fact checker really free?
Yes. The free tier gives you five fact-check queries per day across the six standard AI models. No credit card needed, no trial-expiry trick. Paid plans exist for users who need higher daily limits or premium model tiers.
How accurate is multi-AI fact checking?
Accuracy depends on the claim category. For unambiguous factual claims (verifiable medical, historical, scientific), our internal benchmark shows agreement above 80% across all six models, which is a strong reliability signal. For contested claims (interpretive, political, jurisdiction-specific), the agreement score drops — which is itself the most useful signal: the system is honest about uncertainty rather than rounding to false confidence.
Can I fact check news articles?
Yes. Paste the URL or the full text. Perplexity (one of the six models) performs a live web search on the topic so the verdict can incorporate recent evidence. The other five reason from training data plus the article content.
Can I fact check videos or images?
Text and URLs are supported on the free tier. Image fact-checking (claim extracted from a screenshot, image authenticity verification) is available on Pro plans — see the AI photo verification feature.
How is this different from ChatGPT fact-checking?
ChatGPT gives you one answer from one model. If that model is confidently wrong, you have no way to know. Satcove queries six structurally different models in parallel and surfaces both agreement and divergence. The cross-validation is what reduces hallucination risk.
How is this different from Google Fact Check Tools?
Google Fact Check Tools surfaces fact-checks already published by journalistic organizations. Useful, but limited to claims human fact-checkers have already covered. Satcove fact-checks any claim, including ones too fresh or too niche for human fact-checkers.
Can I fact check claims in French, Spanish, or other languages?
Yes. Satcove detects the language of the claim and produces the verdict in the same language. Supported output languages include English, French, Spanish, Portuguese, German, Italian, Japanese, and Korean.
Does Satcove store the claims I fact check?
Your queries are not used to train Satcove or the underlying models. With Privacy Shield enabled (Pro plans), personally identifiable information is anonymized before any request reaches a provider.
What happens if the 6 AIs disagree on the same claim?
Satcove surfaces the disagreement transparently. The agreement score will be low, the verdict will explain which models concluded what, and you will know to look further before acting. We do not paper over divergence to look more confident.
Can I embed your fact checker on my website or blog?
An embeddable widget is available for journalists, bloggers, and educators. The widget lets visitors fact-check claims on your site without leaving the page. Contact us via the contact page for the embed code.
How fast is a fact check?
Eight to fifteen seconds per query. All six AI models run in parallel.
Will I need to upgrade after a few uses?
Only if you hit the daily limit. Five free fact-checks per day cover casual use. Heavy users — journalists, researchers, content moderators — usually move to Pro for higher daily limits and premium model tiers.
Start your first fact check now
Five free fact-checks per day. No credit card. No trial-expiry trick.
Fact-check a claim — freeSatcove — A product by Abyssal Group