Upside Down Research · Est. MMXXIIIEngine online · UDR-HC-02
HousecarlArbiter
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When sources conflict, know what to believe

Decisions you
can defend.

You read past the headline. You pay for the good reporting. But when two outlets you trust tell the same story two different ways — and your AI just picks one and sounds certain — you're still left guessing. Housecarl Arbiter weighs every source, traces every contradiction, and shows you exactly why it lands where it lands. No black boxes. No vibes.

Start investigatingHow it works
Housecarl Arbiter
Source scoring
Every source weighted by reliability and recency.
Contradiction detection
See where sources split and why.
Confidence score
Every claim is traceable. No hidden weights.
For people who read the footnotes

Submit your question

Feed in claims from anything you’re reading — news reports, studies, primary documents, expert threads. Tag each source with a reliability level. The engine handles the math.

Get a scored verdict

For every claim, you get a clear confidence score: how much evidence supports it, how much opposes it, and how much is still unknown. No hidden weights. Every number is traceable.

Act with clarity

See which narratives hold up under scrutiny and which fall apart. The engine identifies every contradiction, ranks every source, and tells you exactly where the uncertainty lives.

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Who this is for
The news obsessive

You read three papers before lunch and trust none of them all the way. When the coverage contradicts itself, find out which version the evidence actually backs.

The self-directed investor

You manage your own money and read the filings yourself. Weigh the bull case against the bear case by source quality, not by whoever posts the loudest.

The argument-settler

Health, history, policy, science. When the debate needs receipts, build the case from the evidence — and see exactly where it’s still genuinely unsettled.

The independent writer

Newsletter, Substack, podcast. Stress-test your take before you publish it, with a reasoning trail you can stand behind.