Evidence · first-party tested

Fails on scanned multi-column reading order, breaking paragraph segmentation and collapsing the source flow.

✗ Failed🧾 artifact-verifiedTested Jun 20, 2026Upstage AI
Output — unretouched
Scanned two-column page with forestry text.
Scanned two-column page with forestry text.
Output — unretouched
Upstage AI — upstage_scannedpdf_parsed_hierarchy.png
Upstage AI — upstage_scannedpdf_parsed_hierarchy.png
The observation

Fails on scanned multi-column reading order, breaking paragraph segmentation and collapsing the source flow.

Criterion: Reading Order & Structure · Scenario: Scanned Research Paper (group: scanned-research-paper)
Query this
get_evidence({
  tool: "upstage-ai",
  scenario: "scanned-research-paper"
})
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