AI Demos Research — the structured-intelligence platform. Every verdict on these pages opens to the execution behind it.
Graded 17 October 2026

Can PDF to Quiz cover both text and diagram when both matter?

PDF to Quiz generated 17 questions covering text-based ideas but left the diagram-only food web unassessed. The questions addressed energy transfer, decomposers and other prose-based topics, with answers that agreed with the chapter.

1 of 1 test case failed

Every test case in this scenario has a result.

Pass rate0%0 of 1 gradable
Coverage1 of 1test case with a result
0PassNo test case passed.
1FailMissed at least one thing it was expected to do; the reason and proof are with each test case below.
0Not gradableEvery result here could be graded.
0UntestedEvery test case in this scenario has a result.
The pass rate is a summary. The evidence is the test case below: what we sent, what we checked, what the tool returned, and the proof.

The test case

Each test case is judged on its own: Pass, Fail, Not gradable, or Untested. The scenario result above is based on this test case.

A core idea carried only by a diagramFailEvidence
What we sent
InputDocument (PDF)
Input PDF: the food-chain chapter and its diagram-only Fenmoor Ditch food web
Open the PDF ↗
ConfigurationScreenshot
Options screenshot: the quiz settings before generation
Open original ↗
What the tool returned

The tool's response has no text to quote: it is what the evidence under Proofs shows.

Proof 2 · Screenshot

Proof 4 · Screenshot

Proof 3 · Screenshot

Proof 1 · Screen recording · ▶ 2:00–2:04; ▶ 2:00–2:42

Expected vs. Found
✗Expected: Valid questions must assess core information from both text and diagram, with answers or evaluation guidance that agree with the source.Found: The 17 questions covered text-based ideas with source-aligned answers; none assessed the Fenmoor Ditch food web taught only in the diagram.
Supporting proof
Proof 1Screen recording
Screen recording: chapter upload, quiz generation and the full 17-question review
Key moments
Open original ↗
Proof 2Screenshot
Review screenshot: questions about arrow direction, box layout and decomposers
Open original ↗
Proof 3Screenshot
Quiz screenshot: question 13 asks what stays unchanged when food-web boxes move
Open original ↗
Proof 4Screenshot
Review screenshot: a question points arrows from an organism to its food
Open original ↗
Proof 5Screenshot
Page-selection screenshot: all five pages selected, including the food-web diagram
Open original ↗
Why this result

A usable quiz was generated from the whole chapter, diagram included, with supplementary questions off. It still omitted a required core idea, so this is a coverage failure rather than a generation error. The conclusion is limited to the free plan’s default model, not Pro.

Also observed in this test case

Arrow mismatch. Question 14 follows conflicting wording on page 2 of the chapter: it points arrows from an organism to its food, reversing the diagram and the introductory explanation.

Contradictory arrow directions. Question 6 correctly describes energy flowing from prey to predator, contradicting question 14.

Repeated layout question. Questions 7 and 13 ask almost the same thing: which feeding connections stay unchanged when the food-web boxes are rearranged.

Tested by Anshika Gupta · evidence dated 6 October 2026

Configuration and setup

How this tool was set up for the run and what the test needed in place. Each row is a fact from the run's records; a fact the records do not hold is left out, not guessed.

Software that produced the output
PDF to Quiz
Build or version
Not exposed by the hosted product
Surface
Web app
Set up before the run
The food-chains and food-webs chapter was supplied for quiz generation. It teaches core ideas in prose and the Fenmoor Ditch food web only through a diagram.
Language
English
Difficulty level
Hard
AI Supplement Questions
off
Quiz type
Multiple Choice
Pages selected
5/5
Tested
6 October 2026 · Anshika Gupta

How this scenario is graded

How we decide Pass, Fail and Not gradable. The same rules apply to every tool tested on this scenario.

How results are decided

Each test case gets one result per tool: Pass, Fail or Not gradable. A test case we haven't run yet shows Untested. There are no partial results.

The rules
  • Pass: the tool did everything the test expected, and nothing it said contradicts the correct answer.
  • Fail: at least one expected behaviour clearly didn't happen; the test case's result says which one and quotes the tool.
  • Not gradable: our evidence couldn't settle the outcome (for example a record we needed is missing). It is never counted as a fail, and the test case's result says what's missing.

Where this sits in the benchmark

This page is one cell of a larger study: one tool, one scenario. Only this benchmark's frame appears here.

History of this result

What has happened to this result since it was first published. Runs and grades are never overwritten: a retest or a re-grade publishes a new result and keeps the earlier one readable.

from the publication record
7 October 2026First publishedQuiz Generation v1
12 November 2026Updated — retested
The result is unchanged: 0 pass · 1 fail. The earlier result stays readable. Read the earlier result →

Act on this result

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Vendor notice →
Filed against this evidenceNothing yet. Challenges, counter-evidence and fix notices appear here with their outcome, and stay on the page after they are resolved.
Cite this result
aidemos.com/benchmarks/quiz-generation/results/pdf-to-quiz/split-across-text-and-diagram · 0 pass · 1 fail · coverage 1/1 · graded 2026-10-17

The same record is available as structured data through the AI Demos MCP server, with the counts, the coverage and every per-test-case reason carried as fields.

Verify the proof files

These files support this result. Open a file to inspect the original evidence.

Input · Document (PDF) ↗application/pdf · 164 KB
Proof 2 · Screenshot ↗image/png · 419 KB
Proof 3 · Screenshot ↗image/png · 234 KB
Proof 4 · Screenshot ↗image/png · 405 KB
Proof 5 · Screenshot ↗image/png · 333 KB
File fingerprints (SHA-256)

A fingerprint identifies the exact file used for this result.

Input · Document (PDF)b78f39f692f946b6214fddca9f932208c0a6c35ffe1a9b3d003cf75c3a9cda85
Proof 1 · Screen recordingb5d1893c5159b5b957e8676ec44c2a45291c7b70177d783f1e6191470d0f9567
Proof 2 · Screenshot3f055255263b25d4e4a3dac7c51335d4fa1af5f99b32abcc2f5a2f2419bff68d
Proof 3 · Screenshot5561d199454467261f23c15890ecaa341d6d4718ae82e741921d515d0eb07f8c
Proof 4 · Screenshot1e959c1472e999ade2c70808ca027e7ec3b0cebb0d3eb308293f0ca92e3b57e7
Proof 5 · Screenshotc75f73f7c3612f465edbb6a8306a4ac2426fd4e0c1293eec06673848304ff986
Configuration · Screenshot75579ace3c226346decd4d3e0de01b74cac8a701629754156805295e6151c241