Pick a local MP4 or click a measured preset
Videos never leave your device; metadata loads directly via HTMLVideoElement.
Product VideoCommercial-safe · Pixel-locked outputFree trial
Zero-Upload Browser MP4 Checker
Verify what your AI video API actually returned, before publishing.
In our public SHA-256 verification runs, two MiniMax H3 requests asking for 9:16 returned 480x640 (3:4) with HTTP 200 and zero warnings. Inspect decoded pixels, aspect ratio, and duration locally in your browser without uploading or spending credits.
- AI Engine Stack
- MiniMax H3 Max Image-to-Video, Grok Imagine Video v1.5 Reference-to-Video
- Upstream API Benchmark
- Upstream API benchmark starts at $0.060 per second on the most cost-effective model below (no paid checkout on minimaxi.design).
- Primary Output
- Exact decoded pixel width × height & simplified aspect ratio
- SKU & Privacy Lock
- 100% locked geometry · Zero training on uploads
Video Aspect-Ratio & Duration Probe
100% client-side browser probe — zero file uploads, zero credits, no account required.
Need a ready-made prompt template? Click to pick White BG, Relighting, Label Edit, or Model Try-On
Quick Template Switcher
Pick What You Want to Do — Get the Exact Instruction
Click a task below (white background, scene relighting, label text edit, or flat-lay to model) to load a tested instruction.
1. Choose Task
2. Angle
3. Background & Light
Ready-to-Use Instruction
Front hero product angle, crisp edges. Frosted glass skincare serum bottle with gold dropper cap, keep brand logo and label text unchanged, pure #FFFFFF white background with soft contact shadow. 4K commercial e-commerce product photography, zero SKU geometry drift, keep original label text sharp — Flux Kontext & Qwen Image Edit.
Or open a dedicated tool directly:
ZERO-UPLOAD BROWSER PROBE
Inspect local MP4 aspect ratio & duration right here
Select a local AI video file (0 bytes uploaded; no account required) or load one of our verified SHA-256 baseline samples:
| Measured file | Waiting for file or preset… |
| Decoded resolution | — |
| Aspect ratio | — |
| Duration | — |
| Telemetry check | Compare decoded output against your API request ratio and expected clip length. |
How it works
Three steps.
Compare decoded pixels against your request
Catch 480x640 (3:4) silent fallback when you requested 9:16 TikTok Shop vertical.
Verify final ad duration before upload
Spot palindrome-doubled 10.33 s clips before paying for placement or mixing cuts.
You upload
Inputs.
- Any local MP4 or WebM AI product clip (processed 100% in browser memory)
- Or one-click measured baseline presets (MiniMax H3, Grok 1.5, Wan 3.0)
You export
Outputs.
- Exact decoded pixel width × height & simplified aspect ratio
- Silent 9:16-to-3:4 coercion and palindrome loop duration warning flags
Under the hood
Models powering this tool.
Every model lists its transparent per-image or per-second price. Combine Qwen Image Edit for text/inpainting with Flux Kontext & Fill for studio relighting.
FAQ
Short answers.
Does this probe upload my unreleased product video?
No. Everything runs 100% locally inside your browser using URL.createObjectURL; zero bytes leave your machine and no sign-in is required.
Why did requesting 9:16 return 480x640 (3:4) with HTTP 200?
Multiple measured runs in huangguo-ai-video-recipes showed upstream endpoints silently clamping 480p portrait jobs to 480x640 without raising an HTTP error.
Where are the benchmark hashes hosted?
Public SHA-256 checksums and reproducible JSON recipes are maintained at github.com/xingbo778/huangguo-ai-video-recipes.
How do I start, and what does it cost?
Register with your email and password to start. The free period is shown on the homepage and in your workspace. No card is required and there are no automatic charges.
Looking for MiniMax H3 Uncensored Prompts, Pose Control, or AI Short Drama?
Open the dedicated MiniMax H3 Uncensored Prompt Guide (camera moves, LoRA/ComfyUI/GGUF workflows) or watch full AI short drama episodes on Huangguo Drama & ReelShorts.
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