Ad creative
AI ad video generator: the same spot, three ways
One product-commercial prompt, run on three model-and-setting combinations. The clips below are the actual output — no mockups, no stock footage standing in for the product. Each one is labelled with what we measured off the file and what the run cost, because a showcase without those two numbers cannot be checked.
MiniMax H3 · 2K / 5s
Measured: 2544 × 1456 · 5.2s · AAC stereo 32 kHz
Provider cost this run: $0.65
Audio arrived without any audio parameter being set in the request.
Sora 2 · 720p / 4s
Measured: 1280 × 720 · 4.0s · AAC stereo
Provider cost this run: $0.40
Also returns stereo audio — audio alone does not separate these two.
MiniMax H3 · 480P / 15s
Measured: 832 × 480 · 15.1s · AAC stereo
Provider cost this run: $0.75
One unbroken 15-second take. Most models here stop at 4–8 seconds.
Prompt used for the first two, verbatim: a matte-black stainless steel water bottle on a wet slate countertop, morning light from the left, slow push-in, ambient kitchen room tone. Generated 2026-08-18.
What actually separates them
Not audio. The obvious pitch for a newer model is that it makes sound. Both files here came back with an AAC stereo track and neither request asked for one, so audio does not decide this. It is worth saying plainly, because it is the claim a spec sheet would lead with.
Resolution does. 2544 × 1456 against 1280 × 720 is roughly four times the pixels. That matters when the spot plays full-screen and stops mattering when it plays in a feed at thumbnail size.
And take length. A 15-second single take removes the stitching step for a short spot. Most models on this site cap out between 4 and 8 seconds per run.
The cost follows from those two. Higher resolution and longer takes are what you are paying for, not the audio. Every model's per-generation price is on the cost reference, and each model page states its own before you run it.
Budgeting a spot
Ad work is iterative: the first take is rarely the one that ships. Price the attempts, not the finished video. A MiniMax H3 run at 2K / 5s is 100 credits, so a new account's 50 free credits cover 0 of them — start cheaper, then re-run the take that worked at ad quality. Open the text to video workbench and the required credits appear before you generate, or read the MiniMax H3 model page first.
Ad creative FAQ
Which AI model is best for ad creative?+
It depends on what the spot has to do. For a full-screen product shot, resolution decides it and MiniMax H3 at 2K measured 2544 × 1456 — about four times the pixels of a 720p clip. For a fast social cut where the viewer sees it small, a cheaper model at 720p is the better trade. All three clips on this page came from one prompt so the difference is the model, not the brief.
Do AI video models generate sound for ads?+
Some do, and it is worth checking rather than assuming. We probed the files: both MiniMax H3 and Sora 2 returned an AAC stereo track without any audio flag in the request. That means "has audio" is not a useful way to choose between them — resolution, take length and cost per spot are.
How long can one AI-generated ad take be?+
On this site, most models cap a single take at 4 to 8 seconds, which means a 15-second spot has to be stitched from cuts. MiniMax H3 produced an unbroken 15.08-second take with audio intact, so a short spot can come out of one run.
What does one AI ad video actually cost?+
Cost is model multiplied by settings, not a flat rate. The three runs on this page cost $0.65, $0.40 and $0.75 at the provider. In site credits, a new account's 50 free credits do not stretch far at ad-grade settings, which is why the per-model cost is published before you generate rather than after.