Open source · Apache 2.0 · View on GitHub →

Real-time fact-checking
for live media.

Doublecheck listens to podcasts and video streams, detects factual claims, and verifies them with sources — in seconds, not hours.

Start for free →GitHub
doublecheck.app/dashboard
LIVE
HOW IT WORKS

Three steps from stream to verdict.

01

Drop in a URL

Paste any YouTube video or podcast link. Doublecheck handles the rest — no plug-ins, no uploads.

02

Claims are detected live

Streaming audio is transcribed and parsed. A claim model flags statements that are checkable: numbers, attributions, comparisons.

03

Get verdicts with sources

Each claim is researched against authoritative sources and returned with linked evidence and a confidence score.

THE OUTPUT

Every claim becomes a card.

Each fact-check is structured: original claim, verdict, evidence, sources, confidence. We populate cards from real research — nothing on this page is synthesized.

TIMESTAMP
VERDICT
CLAIM
EVIDENCE
SOURCES
CONFIDENCE
Timestamp
Jumps you to the exact moment in the source stream.
Verdict
Verified, Disputed, Unverified, or Needs Context — color-coded.
Evidence
Short summary of what the research turned up.
Sources
Primary documents, news outlets, academic papers. Clickable.
Confidence
How strongly the evidence supports the verdict.
Visual
On-screen data that supports or contradicts the spoken claim.
WHAT IT CATCHES

If it's checkable, Doublecheck checks it.

Statistics & numbers
Revenue figures, growth rates, totals, share percentages.
Historical claims
Founding dates, milestones, timelines, prior performance.
Attributions
Quotes, study citations, official statements, named sources.
Comparisons
Rankings, superlatives, market position, peer benchmarks.
On-screen data
Charts, lower-thirds, and graphics — checked against what's said aloud.
VISION MODEL
WHY IT WORKS

Built for the speed of live.

Sees, not just hears

Multimodal video understanding catches on-screen charts, data, and text that contradict or support spoken claims.

Research, not guessing

Semantic search pulls real evidence from authoritative sources — not keyword matches against junk.

Seconds, not minutes

Fast claim detection means fact-checks arrive while the claim is still fresh in your mind.

WHO IT'S FOR

If truth matters on a deadline.

Journalists
monitoring live interviews and press conferences
Investors
fact-checking founder pitches in real time
Podcast listeners
who want receipts on what they hear
Newsrooms
running live coverage of breaking events

See it in action.

Free to sign up. Paste a video URL and watch claims get verified in real time.

Start for free →
Doublecheck — real-time fact-checking for live media