Captions are not included by default and are added after generation; the visible subtitle render begins with a duplicated phrase ('Welcome to FutureSmart AI AI to discover'), showing the caption output is not clean out of the box.
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: FutureSmart AI – SaaS · text
Input — what we sent
The exact prompt
Product URL: https://aidemos.com/ Exact Script Hook: Finding the right AI tools shouldn't take hours. Script: I've been using FutureSmart AI to discover and compare AI tools in one place. It helps me find the right tool faster with real use cases, rankings, and detailed comparisons. If you regularly use AI tools for work, it's definitely worth checking out. 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 SaaS product, designed to test whether a tool can understand a software offering and turn a concise testimonial script into a believable ad.
Why this input is hard
- · SaaS product understanding
- · script quality
- · avatar realism
- · voice quality
- · caption quality
- · overall ad readiness
Output — unretouched
Vidnoz caption edit.png
Also checked on this input — same tool, 5 other criteria
Ad-readiness◐ MixedThe ad can be generated end-to-end, but the output still feels template-based and needs manual caption work, so it is not fully ready as a paid ad without follow-up polish.Avatar realism◐ MixedThe presenter is moderately realistic, but the avatar can still read as slightly AI-generated and less natural in some moments, even though lip movements are generally aligned.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.Script quality & persuasiveness⚠ StruggledThe delivery feels structured and template-like rather than fully natural UGC-style persuasion.Voice quality✓ WorkedThe generated narration is clear, understandable, and suitable for informational avatar ads.
Provenance
- Observation
- 795a6fd6-90aa-4170-b3d1-86c558115c48
- 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 — 3 other tools
measured on Caption quality
AKOOL✗ FailedThe initial generated clip did not render captions automatically, so caption support was not built into the first output.Creatify.ai✓ WorkedCaptions are generated correctly and stay synced with the speech, making the output readable and accessible.Topview AI◐ MixedCaptions are generated and generally aligned with the spoken line, but the report notes minor timing issues.
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