FactVerify vs Omniscient AI
FactVerify
factverify.appOmniscient AI
omniscient.newsSide by side
| Figure | FactVerify | Omniscient AI |
|---|---|---|
| Price from | Free | $399/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | — | Yes |
| Plans published | 1 | 4 |
| Spec score · AI Fact-Checking Tools | 7.4 (#15) | 7.9 (#9) |
| Free checks | The About page says accounts include 5 free automated checks every month; the homepage offers 1 free check with no account needed. | The try page offers five free checks after Google sign-in and says a promotional code can unlock additional checks without a card. |
| Purpose | FactVerify offers real-time, AI-powered verification of claims, viral posts, and breaking headlines, with an evidence summary and confidence score. | Omniscient AI offers source-linked fact-checking for publishers through an API, a WordPress plugin, and a Chrome extension. |
Plans
Omniscient AI
- MeteredFree
- Always-On Pro$399 a month
- Agency$1,000 a month
- Enterprise$10,000 a year
In their own words
FactVerify
FactVerify is a web-based service that automatically checks claims, viral posts, breaking headlines, articles, webpages and documents. It returns an evidence summary, confidence percentage and linked sources. Its four-stage process identifies a testable proposition, uses primary records, examines context and counter-evidence, then produces a calibrated verdict. The retrieval engine can parse court dockets, statutory texts, peer-reviewed journals and agency datasets; listed primary sources also include SEC filings and government datasets. Confidence percentages describe the coherence and corroboration available when analysis runs, not mathematical certainty. Accounts include five automated checks each month, while the homepage offers one check without an account. Real-time checks are private by default and are not indexed by search engines. Selected checks enter a public library with ClaimReview schema, permanent audit links and freshness tracking. FactVerify notes that automated models can miss temporal nuance, sarcasm, complex statutory references or breaking developments, and says the service is informational rather than legal, medical, financial, tax or investment advice.
Omniscient AI
Omniscient AI provides source-linked fact-checking through an API, a WordPress plugin, and a Chrome extension. An API response contains a consensus Trust Score, model verdicts, and source citations in structured JSON. Each request runs GPT-4o Mini, Perplexity Sonar Pro, and Gemini 2.5 Flash; the developer page says a consensus result returns in under three seconds. The WordPress plugin can add a Fact-vs-Opinion bar and automatically analyze published articles using the publisher’s API key. In Chrome, users can check a webpage or selected text and view results with supporting sources. Documentation also describes webhook delivery and an OBS browser source. Enterprise API v1 accepts claims up to 8,000 characters and lists ten supported languages. The pricing FAQ presents Trust Scores as a triage aid and recommends human review for high-stakes decisions. The try page offers five free checks after Google sign-in. The free plan has a $0 monthly base, then charges $0.005 per fact-check request; paid monthly plans include Always-On Pro at $399 and Agency at $1,000.