Read any text with a critical mind in the margin.
Upload a PDF, paste text, or drop a URL. Jiddu highlights the passages that contain logical fallacies and explains each one in a comment — just like a reviewer in Word — and gives the whole piece a fallacy score from 0 to 100.
Three lenses on the same text
Pick a mode in the form above, or open a sample analysis to see what each one looks like.
Fallacy detector
Highlights every passage that contains a logical fallacy and explains each one in a Word-style margin comment. Outputs a fallacy score from 0 to 100.
See a demoFact-check
Pulls every verifiable claim — numbers, dates, quotes, causal and categorical assertions — and optionally checks each against the live web via Perplexity Sonar with cited sources.
See a demoNeutrality
Surfaces the framing, attribution and source-selection patterns that make a text partisan even when nothing is factually false. Deliberately does NOT classify left/right.
See a demoQuality, measured against humans
We benchmarked the fact-check pipeline against 200 PolitiFact-labeled claims. Jiddu's verdict matched the human verdict on 81.3% of the unambiguous true / false / pants-on-fire claims, with strict polar disagreement in only 4.5% of cases.
Full methodology and confusion matrix