Grok Imagine video plus voice and music: a 15-second ad for $0.42
Grok Imagine Video is silent at $0.0125 a second. Add text to speech, a music track and a Timeline join: about $0.42 for a finished 15 s ad on Sume.
Sume's Grok Imagine Video 1.5 row has no audio. A finished ad needs sound, which are three more priced steps. All SKUs read 2026-10-07.
| Step | Assumption | Cost |
|---|---|---|
| Grok Imagine 1.5, 15 s | 15 x $0.0125 | $0.1875 |
| Text to speech | about 250 characters at $0.0475 per 1,000 | $0.012 |
| Music track | one track | $0.0119 |
| Timeline render | one output minute | $0.10 |
| Total | $0.4244 |
The assumption to check
Two hundred fifty characters is about 40 spoken words, a comfortable read for 15 seconds. Longer scripts cost a little more: 1,000 characters is $0.0475. The music price is for one track. The same ad with Kling 3 audio on is $3.15 in one step, so you trade about $2.70 for convenience.
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