Evidence-first news intelligence
Understand what happened, what changed, and what is still unknown.
Sonder turns fragmented reporting into living, source-linked dossiers. It separates facts from claims, shows contradictions, preserves permitted evidence and explains why new developments connect to older events.
Latest research
Active dossiers
How Sonder works
From noisy signals to an auditable account
- 01
Discover
Monitor permitted news feeds, official records and selected public signals.
- 02
Preserve
Capture allowed evidence as immutable versions with timestamps and integrity hashes.
- 03
Verify
Extract atomic claims, identify source lineage and seek supporting and contrary evidence.
- 04
Connect
Link new developments to historical dossiers with an explicit, reviewable reason.
- 05
Publish
Export only approved public fields after rights, risk and editorial review.
Transparent methodology
A score is a summary of evidence—not a declaration of truth.
Separate assessments
Evidence confidence, headline fidelity, independent corroboration, source transparency, context completeness and manipulation risk are shown separately.
Visible uncertainty
Every assessment states missing evidence, strongest counter-evidence and what could change the conclusion.
Version history
Corrections and material score changes remain visible, with old conclusions preserved for audit.