The presenter still looks AI-generated compared with higher-end tools, so the avatar does not fully pass as a natural human creator.
What was measured
Avatar realism
How believable the presenter looks and how uncanny or AI-obvious the avatar appears, including lip-sync plausibility.
decisive for this rankingtransformation
This ranking is about whether the avatar convincingly plays the creator in the ad; if it looks uncanny or AI-obvious, the core product has failed. (3 of 3 judges)
What was given, what came back
Test input: Duolingo – Mobile App · text
Input — what we sent
The exact prompt
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-style video ad prompt for a consumer mobile app, designed to test whether a tool can explain app benefits simply and persuasively in a social ad format.
Why this input is hard
- · mobile app understanding
- · consumer app promotion
- · script quality
- · avatar realism
- · voice quality
- · caption quality
- · overall ad readiness
Output — unretouched
vidnoz-ai output — duolingo brief
Also checked on this input — same tool, 5 other criteria
Ad-readiness⚠ StruggledBecause the background is generic and the app interface is absent, the export would need further production work before paid-ad use.Platform formats✓ WorkedFor this input, the tool produced a vertical 9:16 avatar video suitable for short-form placements such as TikTok, Reels, and Shorts.Product understanding⚠ StruggledThe output uses a generic background and omits the app UI, so it does not strongly communicate the mobile-app product itself.Script quality & persuasiveness⚠ StruggledThe delivery feels slightly flat and would need more energy to be strongly persuasive.Voice quality✓ WorkedThe voice output stays consistent throughout the ad.
Provenance
- Observation
- b391a3f3-4771-430c-96c5-6fcef7c408ef
- Evidence run
- f91a51ec-b400-46fe-97f5-7e779fe17532
- 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: "vidnoz-ai"
})MCP · mcp.aidemos.com/api/mcp
Free with attribution.
Same input, same check — 4 other tools
measured on Avatar realism
AKOOL⚠ StruggledThe presenter still reads as AI-generated compared with higher-end tools.Creatify.ai✓ WorkedThe avatar looks realistic and holds attention well enough for a mobile-app ad, with speech and lip movements aligned naturally.Synthesia✓ WorkedThe generated presenter delivered smoothly with maintained lip-sync, so the avatar reads as technically coherent in preview.Topview AI⚠ StruggledThe presenter still looks AI-like, and minor lip-sync mismatches remain visible.
This evidence is published in
From the same study (page rebuilt from a later run)
Real inputs and real outputs, no retouching · every cell queryable via API & MCP · aidemos.com