The clip adds a timed phone-and-coffee cutaway, but the screen content is blurred and generic instead of product-specific, so the supporting footage does not fully reinforce the app.
What was measured
B-roll / product integration
Relevant supporting footage or product shots, when the tool offers them.
decisive for this rankingtransformation
Relevant product shots and supporting footage help determine whether the ad feels complete and convincing. (3 of 3 judges)
What was given, what came back
Test input: Duolingo – Mobile App · mixed · group: ugc-style-video-ads
Input — what we sent
Input, verbatim
Product URL: https://www.duolingo.com/ Exact script: Hook: Learning a new language has never been this easy. Script: I've been using Duolingo for a few minutes every day, and it's made language learning simple and fun. The short lessons are easy to follow, and the daily practice keeps me motivated. If you're planning to learn a new language, give Duolingo a try. Output requirements: - Vertical (9:16) - 20–30 seconds - UGC-style AI presenter - Natural AI voice - Captions enabled
A short-form UGC promo prompt for a consumer mobile app, designed to test whether the tool can explain app benefits simply and persuasively while generating a realistic AI-presenter video.
Why this input is hard
- · Mobile app understanding
- · Consumer app promotion
- · Script quality
- · Avatar realism
- · Voice quality
- · Caption quality
- · Overall ad readiness
Output — unretouched
Also checked on this input — same tool, 5 other criteria
Ad-readiness◐ MixedThe clip is branded and complete, but the generic b-roll and non-clickable end card make it less action-ready as a paid ad without another review pass.Avatar realism✓ WorkedThe presenter reads as a consistent human avatar with a clean UGC look throughout the clip, with no obvious flicker or identity break reported.Caption quality◐ MixedThe captions visibly advance across the clip and support the CTA line, but the report does not separately validate timing or styling beyond the sampled frame progression.Product understanding◐ MixedThe output gets the brand right in the outro card, but the mid-script phone b-roll is generic message-bubble UI rather than an actual Duolingo lesson screen, so product specificity is only partial.Script quality & persuasiveness✓ WorkedThe script is reproduced verbatim and reaches the closing CTA line without truncation, so the testimonial structure and call-to-action remain intact.
Provenance
- Observation
- 107f3ac0-9c11-45b0-aa76-f6d22bddced6
- Evidence run
- 9fdbb84b-4aa0-484d-8f89-5c46608019a5
- Study
- Generate UGC-Style Video Ads With AI Avatars
- Research task
- 86baxegpg
- Tested at
- not recorded
- Source
- first-party
- Evidence state
- verified
- Proof shown
- input + output shown
- Cost / latency
- not captured
- Repeat run
- not captured
- Tester
- not captured
The last three rows are honest blanks, not placeholders — our capture has no field for them yet.
Query this
get_evidence({
tool: "invideo-ai",
scenario: "ugc-style-video-ads"
})MCP · mcp.aidemos.com/api/mcp
Free with attribution.
Same input, same check — 6 other tools
measured on B-roll / product integration
AKOOL✗ FailedAdds no app UI or other product footage at all.HeyGen✗ FailedThe supporting footage is not product-integrated because the cutaway uses the wrong app entirely, so the B-roll does not match the Duolingo testimonial being spoken.JoggAI✗ FailedThe tool can produce a single static shot with no cutaways and no product visuals, so the app never gets any supporting footage.Topview AI⚠ StruggledThe podcast-style output does not show the Duolingo app UI, so the ad lacks contextual app integration.VEED⚠ StruggledThe Duolingo output is a talking-head clip, and the report says the Duolingo UI was not automatically included, so contextual app visuals were not supplied by default.Vidnoz AI✗ FailedDoes not add app UI or other contextual footage; the output remains a generic talking-head video with a plain background.
This evidence is published in
Real inputs and real outputs, no retouching · every cell queryable via API & MCP · aidemos.com