Evaluating LLM hallucinations in 30 seconds
Silent video: no voiceover, music or sound effects. This transcript repeats every on-screen word and describes each scene.
The film includes the topic label "LLM hallucination evaluation", the note "Illustrative diagram", the TecnoStack logo and progress numbers 1, 2, 3, 4, 5, 6. Elements enter and leave during transitions; in portrait, the closing sign-off replaces the footer.

[0:00–0:05] Beat 1 of 6 (intro)
Kicker: LLM hallucination evaluation
Headline: Is the answer supported?
Support: Test the complete application
Diagram (flow): Real question; Retrieved passages; Answer and citations
Connections: Real question → Retrieved passages; Retrieved passages → Answer and citations
Highlighted: Answer and citations
Scene: Flow: Real question, Retrieved passages, Answer and citations. Connections: Real question to Retrieved passages; Retrieved passages to Answer and citations. Emphasis: Answer and citations.

[0:05–0:10] Beat 2 of 6 (step1)
Kicker: 01
Headline: Use real questions
Support: Include unanswerable cases
Diagram (hub and spokes): Test set; Real user questions; Cases to decline; Arabic and English
Connections: Test set → Real user questions; Test set → Cases to decline; Test set → Arabic and English
Highlighted: Test set
Scene: Network: Test set, Real user questions, Cases to decline, Arabic and English. Connections: Test set to Real user questions; Test set to Cases to decline; Test set to Arabic and English. Emphasis: Test set.

[0:10–0:15] Beat 3 of 6 (step2)
Kicker: 02
Headline: Agree on labeling rules
Support: Compare independent reviewers
Diagram (flow): Test case; Labeling guide; Two reviewers; Agreed label
Connections: Test case → Labeling guide; Labeling guide → Two reviewers; Two reviewers → Agreed label
Highlighted: Labeling guide
Scene: Flow: Test case, Labeling guide, Two reviewers, Agreed label. Connections: Test case to Labeling guide; Labeling guide to Two reviewers; Two reviewers to Agreed label. Emphasis: Labeling guide.

[0:15–0:20] Beat 4 of 6 (step3)
Kicker: 03
Headline: Score each stage separately
Support: Identify what needs fixing
Diagram (evidence checklist): Right passages found; Claims supported; Citations accurate; Correct declines
Highlighted: Claims supported
Scene: Comparison without scores: Right passages found, Claims supported, Citations accurate, Correct declines. Emphasis: Claims supported.

[0:20–0:25] Beat 5 of 6 (step4)
Kicker: 04
Headline: Look beyond the average
Support: Report case counts per slice
Diagram (decision paths): All test results; One average; Results by slice
Connections: All test results → One average; All test results → Results by slice
Highlighted: Results by slice
Scene: Branching diagram: All test results, One average, Results by slice. Connections: All test results to One average; All test results to Results by slice. Emphasis: Results by slice.

[0:25–0:30] Beat 6 of 6 (close)
Kicker: TECNOSTACK
Headline: Turn failures into test cases
Support: Read the full TecnoStack guide
Diagram (timeline): Test set; New failure; Add the case; Re-run after changes
Connections: Test set → New failure; New failure → Add the case; Add the case → Re-run after changes
Highlighted: Add the case
Sign-off: TecnoStack logo and tecnostack.com
Scene: Sequence: Test set, New failure, Add the case, Re-run after changes. Connections: Test set to New failure; New failure to Add the case; Add the case to Re-run after changes. Emphasis: Add the case.