Is the Omniscient AI Chrome Extension free?

The extension offers a free tier with a monthly credit allocation for basic fact-checking. Pro subscriptions provide unlimited access for $34.99/month. Pay-as-you-go credits are available at $0.11 per fact-check for users who need more than the free tier without a full subscription.

Which browsers support the Omniscient AI extension?

The extension supports Google Chrome, Brave, Microsoft Edge, Opera, and all Chromium-based browsers. It is not available for Safari or Firefox.

How does the extension access page content?

The extension reads the visible text content of the active browser tab when activated. It does not access private browsing sessions, send persistent browsing history to its servers, or read content from other tabs. Its privacy policy is available at omniscient.news/privacy.

Can the extension fact-check social media posts?

Yes. The extension works on any web page, including Twitter/X, Facebook, LinkedIn, and Reddit. Text content from posts is passed to the fact-checking engine and assessed against the curated source corpus. Image content within social media posts is not currently fact-checked by the text extension — visual verification requires separate tools.

What is the Chrome extension's verdict for opinions?

When a statement is identified as primarily an opinion rather than a factual claim, the extension returns an 'Opinion / Unverifiable' verdict — explicitly identifying that the statement is not a checkable factual assertion rather than returning a misleading True/False verdict on a subjective claim.

How to Use the Omniscient AI Fact-Checker Chrome Extension

What Is the Omniscient AI Chrome Extension?

The Omniscient AI Chrome Extension is a browser tool that fact-checks any web page in real time using three AI models simultaneously: ChatGPT (GPT-4o), Perplexity Sonar Pro, and Google Gemini 2.5. When activated on any page — a news article, social media post, blog, or research paper — the extension analyses the content, identifies key factual claims, retrieves evidence from a curated corpus of 1,200+ trusted news and fact-check sources, and returns multi-model verdicts with full citations within seconds.

Installation

The extension is available in the Chrome Web Store. Search for "Omniscient AI" or visit omniscient.news/try for a direct installation link. It requires Google Chrome, Brave, or any Chromium-based browser. After installation, a small Omniscient AI icon appears in your browser toolbar. The extension requires a free account to use — sign in with Google OAuth to activate. Free-tier users receive a monthly allocation of fact-check credits; Pro subscribers and pay-as-you-go users receive unlimited access.

Running a Fact-Check

To fact-check a page, click the Omniscient AI toolbar icon while viewing the page you want to check. The extension's popup interface will open. Three panels represent the three AI models — ChatGPT, Perplexity, and Gemini. Each panel shows the model's verdict, supporting evidence, and direct source citations. The consensus score at the top aggregates all three verdicts into a single overall assessment.

For each claim assessed, you will see: a verdict label (Verified / Disputed / Opinion / Unverifiable / Mostly Accurate / Misleading / False); a confidence score (High / Medium / Low) based on the quality of supporting evidence; a list of cited sources with trust tier indicators; and a plain-language explanation of the reasoning behind the verdict.

Understanding Trust Tier Indicators

Sources cited by the extension are displayed with colour-coded trust tier indicators: ● Green indicates Tier 1–2 sources (institutional authorities and major wire services); ● Yellow indicates Tier 3 sources (established national news); and ● Red indicators appear if claims are only supported by Tier 4+ sources. The absence of red indicators means the fact-check is grounded in high-quality evidence.

Exporting and Sharing Results

Fact-check results can be exported as a formatted report (PDF or shareable link) for use in articles, research, or social media. The report includes the full evidence chain — all retrieved passages, source citations, model verdicts, and confidence scores — making it suitable as supporting documentation for journalistic reporting or academic research.

What Is the Omniscient AI Chrome Extension?

Installation

Running a Fact-Check

Understanding Trust Tier Indicators

Exporting and Sharing Results

Frequently Asked Questions

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