Captions run throughout the Nike clip, and the output shows subtitles advancing with the spoken lines instead of disappearing mid-video.
What was measured
Caption quality
Accurate, well-timed captions with appropriate, on-trend styling.
decisive for this rankingtransformation
Accurate, well-timed captions are part of the finished ad and affect clarity and performance on social platforms. (3 of 3 judges)
What was given, what came back
Test input: Nike Pegasus 41 – Physical Product · mixed · group: ugc-style-video-ads
Input — what we sent
Input, verbatim
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 testimonial prompt for a physical consumer product, designed to test product comprehension, believable praise for a running shoe, and ad-style video generation quality.
Why this input is hard
- · Physical product understanding
- · UGC testimonial quality
- · Product presentation
- · Avatar realism
- · Voice quality
- · Commercial ad readiness
Output — unretouched
Also checked on this input — same tool, 6 other criteria
Avatar realism✓ WorkedThe Nike output keeps a consistent, natural-looking on-camera presenter with stable identity and wardrobe, and the report says the avatar rendering holds up well throughout the clip.B-roll / product integration◐ MixedThe Nike output includes relevant running lifestyle b-roll, but one outdoor running shot contains a visible semi-transparent smear/compositing glitch on the runner's leg.B-roll / product integration✓ WorkedThe video integrates relevant product close-ups and running lifestyle footage, with a correctly rendered Nike swoosh, 'PEGASUS 41' label, and 'ZOOM' branding in the shoe shot.Platform formats✗ FailedThe export comes out as a 1920x1080 widescreen video, not the requested vertical 9:16 UGC format for TikTok/Reels/Shorts.Product understanding✓ WorkedIt understands the product well enough to surface the correct Pegasus 41 branding and real Nike tech claims such as ReactX foam, +13% energy return, and Dual Zoom Air.Script quality & persuasiveness◐ MixedThe tool assembles a persuasive ad structure with a hook, product B-roll, feature overlays, and a CTA end card, but it rewrites the supplied copy by adding technical claims that were not in the prompt.
Provenance
- Observation
- e75de6e5-97b8-48d2-90f8-c5683380af19
- 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: "heygen",
scenario: "ugc-style-video-ads"
})MCP · mcp.aidemos.com/api/mcp
Free with attribution.
Same input, same check — 3 other tools
measured on Caption quality
Invideo AI◐ MixedCaptions are present and advance with the copy, but the report does not separately verify timing or styling on this input beyond the visible subtitle progression.JoggAI✗ FailedThe tool can export a clip with zero on-screen captions for the full 15.8 seconds, leaving the short-form ad uncaptioned.Topview AI✓ WorkedCaptions were generated automatically and were readable.
This evidence is published in
Real inputs and real outputs, no retouching · every cell queryable via API & MCP · aidemos.com