Answers you can check.
Vertifai is a browser extension for research, fact-checking and media analysis. It reads the page you're on and answers your questions with the passages it used, so you can see for yourself.
Free plan included with every account: 10 credits a month. Works in Chrome.
One panel. Four jobs.
On articles, PDFs and videos, in the tab you already have open.
Ask about the page
Ask in your own words. The answer cites the passages it came from, and a tap shows them in the page.
Fact-check
Checks the claims in an article against the page and public sources, and says what holds up and what doesn't.
Summarize
The gist of a long read in a few lines, each point traceable to where it came from.
Explain
Contracts, research papers, jargon: explained simply, without leaving the page.
Ask the page, not the internet.
Three steps, on any tab.
Open the panel
Click the Vertifai icon. The panel opens beside the page and shows which page it can read. Start with a suggestion or type your question.
Ask in your own words
“Is this claim supported?”, “Find the recipe”, “What does the author say about costs?” Vertifai reads the page only when your question is about it, and searches the web only when it needs to.
Check the sources
Every answer lists its sources. Tap one and the passage lights up in the page. If the page doesn't say it, Vertifai says so.
Reads what you ask about. Nothing more.
The same words you see in the extension:
Vertifai reads the page you're on to prepare answers. Page content is sent to Vertifai only when you ask about it. The page title and address go with your messages. Search queries may include page text and go to our search provider. Page evidence is kept with the task until you delete it.
No trackers
No analytics scripts or advertising pixels on this site or in the extension.
Sign-in stays on the server
Your session is a secure, HTTP-only cookie. The extension never stores passwords or tokens in the browser.
Your data, your call
Export your tasks or delete your account from the account page. Data is stored in the EU: servers and database in the Netherlands (Railway, Google Cloud europe-west4) and stored files in Cloudflare R2's EU jurisdiction.
Start free. Pay for the depth you use.
Credits pay for questions and analyses. Video analysis costs 1 credit per started minute; agent tasks are charged per operation.
Free
$0Included with every account.
- 10 credits every month
- Tasks and reports saved to your account
- Available models and reasoning levels, paid with credits
Plus
$14.99 / monthFor regular reading and checking.
- 150 credits every month
- Everything in Free
Pro
$29.99 / monthFor daily research.
- 400 credits every month
- Everything in Plus
- Analysis queue priority
Prices in USD, including VAT where it applies, billed monthly. Monthly credits expire at the end of their period. Purchased credits don't expire.
Busy month? Credit packs: 40 credits for $4.99, 90 for $9.99, 190 for $19.99.
Questions people ask first
What is a credit?
A credit is the unit Vertifai bills by. Video analysis costs 1 credit per started minute; agent tasks are charged per operation. The panel shows the cost before anything expensive starts.
Does Vertifai read all my tabs?
No. It reads the page you ask about, when your question concerns it. The panel always shows which page it can read, and you can turn it off per task.
Do I need an account?
You can try it with the free credits that come with the install. An account keeps your tasks across devices and lets you subscribe.
Can the answers be wrong?
Yes. AI can make mistakes. Check important info. That is why every answer shows its sources and the passage it relied on.
Which languages does it understand?
The interface is available in English and Norwegian. Pages and questions can be in either, and answers follow the language you ask in.
Can I get my data out, or delete it?
Yes. The account page has an export that gives you your tasks as a file, and you can delete your account there. Deletion takes effect after a 7-day grace period in which you can change your mind; payment records are kept as bookkeeping law requires.