Cost of a 30-second AI video ad: clips, captions, music

A 30-second ad costs $0.80 end to end if the footage comes from Grok Imagine Video 1.5 at 720p and $6.73 if it comes from Kling 3 with audio on at 1080p. The clip model sets almost the whole bill; the finishing steps add $0.425.

The finishing steps

Three fixed prices from the docs apply to any ad: a timeline render at $0.10 per output minute rounded up, a caption job at $0.20 for a video up to 60 seconds, and one accepted music generation at $0.125. Together that is $0.425.

Totals for 30 seconds of footage

Footage is billed per second of generated video at the catalog rate. The ad assumes one take of exactly 30 seconds in total and one render.

Where the money goes

On Grok the finishing steps are more than half the bill. On Kling 3 they are about 6 percent. If your ad is mostly voice or text on screen, cheaper footage lowers the total far more than skipping music.

• Timeline: $0.10 per output minute, so a 30-second ad is billed as one minute.
• Captions: one job covers a video up to 60 seconds.
• Music: billed per accepted generation, not per second.

Steps to price your own ad

Start from the shot list, then sum three lines: footage seconds times the catalog rate, plus $0.10 per output minute rounded up, plus $0.20 per caption job and $0.125 per accepted music generation. Multiply the footage line by your expected takes.

For a 30-second ad with six 5-second shots and a 1.5 take factor on Wan 720p, footage is $5.625 and the total is $6.05. The finishing steps did not change; only the footage line moved.

• Use a flat take factor for budgeting, then replace it with measured data.
• Re-price when a model in the catalog changes.

Limits

Retakes multiply the footage line, and Grok clips are 4 to 15 seconds, so 30 seconds is at least two requests. The tables show the model amount. A workspace Agent Fee line can be added on top, so treat the job's own usage cost as the truth and check the live catalog before you budget; limits and rows change.