Everything you need to get the most out of TruthPrism
TruthPrism is currently available to friends and family by invitation. You need a Prism Code to use the app.
If you don't have a Prism Code, you can purchase a Prism Pack on the TruthPrism website.
A Prism Pack is a one-time purchase of a set number of fact-checks. There's no subscription — buy when you need them, use them at your own pace. Your checks never expire.
Click Authentication to expand it, then click the small Change code link. This clears the saved code so you can enter a new one.
After each check, a banner shows how many checks remain on your current Prism Code. You can also click Test in the Authentication section to see your remaining checks.
When using the Chrome or Edge extension, click Check This Page to analyze the article you're currently reading. The extension extracts the article text automatically.
Copy and paste article text directly into the Check Custom Text field and click Check This Text. This always works regardless of paywalls or site restrictions.
Articles are analyzed up to approximately 10,000 characters (~1,300 words). If an article is longer, only the first portion is analyzed and you'll see a truncation warning.
Most checks complete in 20–40 seconds. The app shows live progress through three steps: summarizing the article, verifying each claim with Brave Search, and evaluating context. If a check seems stuck, wait up to 90 seconds before trying again.
The Factual Score (1–10) rates the accuracy of verifiable factual claims — dates, statistics, quotes, attributions, and assertions checked against real-time web sources via Brave Search.
| Score | Meaning |
|---|---|
| 8–10 | Mostly or fully accurate — claims verified by credible sources |
| 4–7 | Mixed accuracy — some claims accurate, some questionable |
| 1–3 | Mostly inaccurate — significant false or unverified claims |
The Context Score (1–10) rates whether the article gives you the full picture — framing, omitted context, charged language, and one-sided presentation.
| Score | Meaning |
|---|---|
| 8–10 | Balanced and complete — fair framing, no significant omissions |
| 4–7 | Notable omissions or framing issues that affect interpretation |
| 1–3 | Highly misleading framing or major context omitted |
TruthPrism extracts 3–6 of the most consequential claims from the article and verifies each one using real-time Brave Search results. Each claim gets a verdict:
A plain-language summary of the overall factual reliability of the article based on the claim verdicts.
An evaluation of how the article presents information — whether it uses charged language, makes unsourced motivational claims, omits important counterarguments, or presents opinion as fact.
Click Save to download a text file with the full analysis, or click Full Report to open a formatted HTML report in a new tab which also has a save option.
TruthPrism verifies 3–6 claims in parallel using Brave Search, then evaluates context and writes a narrative. This typically takes 20–40 seconds. The live progress indicator shows which step is running.
TruthPrism uses AI which can make mistakes. Results should be a starting point for further research — not a definitive verdict. Check the full report for the specific claims identified and sources consulted.
TruthPrism tries to extract just the main article body, ignoring navigation and sidebars. Some sites use unusual structures that make this harder. Copy just the article text and use Check Custom Text to ensure the full article is analyzed.
Check that your Prism Code is saved correctly in the Authentication section. If the code is correct, the server may be temporarily restarting — wait 30 seconds and try again.
Install the TruthPrism shortcut to fact-check any article you're reading with one tap from Safari or any app — no copying and pasting needed.
Tap the button below on your iPhone or iPad in Safari to install the shortcut automatically:
https://app.truthprism.app?url= → tap the variable icon → select URLsTruthPrism is an AI-powered fact-checking tool built by Paul Laikind, PhD. It uses Anthropic's Claude AI for analysis and Brave Search for real-time web verification, returning a Factual Score, a Context Score, and a plain-language explanation of its findings.
TruthPrism uses Brave Search to perform real-time web searches during claim verification, consulting news sources, fact-checking organizations (FactCheck.org, PolitiFact, Reuters, AP), government websites, and academic publications. Sources consulted are listed in the full report.
We collect only your email address (to deliver your Prism Code) and usage count data. Article content is not stored after analysis. See the full Privacy Policy for details.
For questions, bug reports, code issues, or data deletion requests:
TruthPrism Support
Email: support@truthprism.app
We aim to respond within 2 business days.