Side by side
FactGuard vs Omniscient AI
Both stand on ai fact-checking tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APIiPhoneWeb
FactGuard pairs verdicts with reasoning and cited sources, and offers a private on-device mode. Treat automated results as a starting point: the service itself advises checking its cited sources.
Visit FactGuard
Free plan APIExtensionWeb
Omniscient AI offers publisher-facing claim checks with citations across API, WordPress, and Chrome. The service itself recommends human review when decisions carry high stakes.
Visit Omniscient AIThe facts
| FactGuard | Omniscient AI | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | No | Not published |
| Runs on | API, iPhone, Web | API, Extension, Web |
| Lowest paid plan | FactGuard Pro Annual: $36.99 a year | Always-On Pro: $399 a month |
| Plans published | 8 | 4 |
| Maker | Not published | Not published |
| Website | factguard.org | omniscient.news |
| On ai fact-checking tools | #3 of 21 | #7 of 21 |
FactGuard: what it does well
- Verdicts include citations and a confidence score.
- Offers Quick, Thorough, and Private modes.
- Free plan includes three daily checks.
- Fact-Check API states a free tier of 100 calls per day.
What to know first
- Free web claims are limited to 1,000 characters.
- Free web history shows only 30 recent checks.
- Listed Pro plans are marked coming soon.
- Automated verdicts may be inaccurate or out of date.
Omniscient AI: what it does well
- API returns verdicts and source citations
- Runs three AI models per request
- WordPress plugin supports article analysis
- Chrome extension checks pages and selected text
- Five free checks after Google sign-in
What to know first
- API claims limited to 8,000 characters in Enterprise v1
- High-stakes decisions call for human review
- API requires Bearer-token authentication
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