Get a Second Opinion by Grok
Instant fact-checks on anything you read online.
How It Works
Fact-check any content across the web in two simple steps
Select Content
Select any content and right-click Get Second Opinion.


Get Second Opinion
Receive a Second Opinion by Grok on the selected content.

Don't Take Our Word For It
Hear from our growing community
Frequently Asked Questions
Everything you need to know about Second Opinion
Second Opinion is a browser extension that lets you highlight text on any webpage, right-click, and get Grok's analysis of the content. It helps you quickly fact-check information as you browse the web.
The Second Opinion extension is completely free to install and use. You'll need your own Grok API key to power the fact-checking, which means you pay only for the actual token usage when analyzing content. There are no subscription fees for the extension itself.
Currently, Second Opinion is available for Chrome and Chrome-based browsers like Brave and Edge. Support for additional browsers is coming soon.
Yes, Second Opinion works on virtually any website where you can select text. This includes news sites, blogs, social media, and more.
Second Opinion uses Grok to analyze content. While Grok is a powerful AI, it's always a good idea to verify important information with multiple sources.
Share Your Feedback
Help us improve Second Opinion with your suggestions