Evidence · first-party tested/creatify-ai

The output stayed in landscape orientation, which is not suitable for short-form social ads.

✗ Failed🧾 artifact-verifiedinput + output shownTest date not recordedSynthesia →

What was measured

Platform formats

Whether the tool can produce the correct short-form output format, especially vertical 9:16 videos for TikTok, Reels, and Shorts.

context, not decisivecapability

Vertical exports for TikTok, Reels, and Shorts are important compatibility features, but they are not the core measure of ad quality. (2 of 3 judges)

What was given, what came back

Test input: Nike Pegasus 41 – Physical Product · text

Input — what we sent

The exact prompt

Product URL: https://www.nike.com/t/pegasus-41-mens-road-running-shoes-LMhrRG/FD2722-002

Exact Script
Hook: These are my new favorite running shoes.
Script: I've been wearing the Nike Pegasus 41 for my daily runs, and they've been incredibly comfortable from day one. They're lightweight, well-cushioned, and great for everyday training. If you're looking for dependable running shoes, they're definitely worth considering.

Output Requirements
- Vertical (9:16)
- 20–30 seconds
- UGC-style AI presenter
- Natural AI voice
- Captions enabled

A short-form UGC-style testimonial ad prompt for a physical consumer product, designed to test product presentation, believable endorsement, and ad generation quality for e-commerce footwear.

Why this input is hard

· physical product understanding
· UGC testimonial quality
· product presentation
· avatar realism
· voice quality
· commercial ad readiness

Output — unretouched

Output 1

Output 2

Output 3

Also checked on this input — same tool, 3 other criteria

Avatar realism✓ WorkedThe generated presenter remained professional and consistent, with accurate lip-sync in the previewed output.Script quality & persuasiveness⚠ StruggledThe delivery lacked an informal creator-style tone and personalization, so it reads more like a polished spot than a believable UGC testimonial.Voice quality✓ WorkedThe voice clarity and pacing were strong, making the spoken delivery easy to follow.

Provenance

Observation: ec271915-06d0-4aab-8af5-82d76ffb7431
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: "synthesia"
})

MCP · mcp.aidemos.com/api/mcp

JSON · ai.aidemos.com/v1/observations/ec271915-06d0-4aab-8af5-82d76ffb7431

Free with attribution.

Same input, same check — 4 other tools

measured on Platform formats

AKOOL✓ WorkedProduced a vertical 9:16 short-form video export, matching the TikTok/Instagram Reels/YouTube Shorts format the report targets.Creatify.ai✓ WorkedThe generator outputs a short-form vertical video in 9:16 format suitable for TikTok, Reels, and Shorts.Topview AI✓ WorkedTopview can export vertical 9:16 videos for this input, matching short-form social ad formats.Vidnoz AI✓ WorkedFor this input, the tool produced a vertical 9:16 avatar video suitable for short-form placements such as TikTok, Reels, and Shorts.

This evidence is published in

creatify-ai →synthesia →topview-ai →vidnoz-ai →

From the same study (page rebuilt from a later run)

Best AI Tools for Generating UGC-Style Video Ads With AI Avatars →

Real inputs and real outputs, no retouching · every cell queryable via API & MCP · aidemos.com