Evidence · first-party tested/creatify-ai

Subtitles are generated accurately and remain synchronized with the speech.

✓ Worked🧾 artifact-verifiedinput + output shownTest date not recordedCreatify.ai →
What was measured
Caption quality

Whether captions are accurate, readable, well-timed, and styled in a way that fits short-form social ads.

decisive for this rankingtransformation

Captions are part of the ad experience in short-form video and affect clarity, pacing, and perceived polish, so poor captions hurt the actual output. (3 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
Download video: creatify-ai-creatify-nike-output-mp4-ab404277bd45.mp4
Also checked on this input — same tool, 6 other criteria
Ad-readiness◐ MixedThe output is vertically formatted and downloadable, but the free-plan watermark and limited product emphasis keep it from being fully ready as a paid ad without review.Avatar realism✓ WorkedThe presenter looks human-like and engaging enough for a fitness product ad, and the lip movements stay naturally aligned with the voice.Platform formats✓ WorkedThe generator outputs a short-form vertical video in 9:16 format suitable for TikTok, Reels, and Shorts.Product understanding◐ MixedThe tool can handle a physical consumer product, but the generated video stayed more avatar-centered than product-centered and felt somewhat template-based for the fitness audience.Script quality & persuasiveness✓ WorkedThe delivery style and pacing match a typical UGC fitness/product review video, so the script reads as a believable testimonial rather than a brochure.Voice quality✓ WorkedThe voice sounds smooth, clear, and confident, which fits product-promotion content.
Provenance
Observation
6cd9ec78-01e6-436d-9970-ca1640240a74
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: "creatify-ai"
})
MCP · mcp.aidemos.com/api/mcp
JSON · ai.aidemos.com/v1/observations/6cd9ec78-01e6-436d-9970-ca1640240a74
Free with attribution.
Same input, same check — 1 other tool
measured on Caption quality
Topview AI✓ WorkedSubtitles are included and readable, so the output handles captions cleanly on this test.
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