Omni Flash or Kling 3 for a 10-second clip: price by resolution
A 10-second clip is $0.375 to $3.75 on Gemini Omni Flash 1.1; kling-3 is $2.10 with sound at 720p or 1080p. Kling 4.0 is announced only.
On Sume, a 10-second clip is $0.375 at 360p, $1.25 at 720p, $1.875 at 1080p and $3.75 at 4K with Gemini Omni Flash 1.1. kling-3 offers 720p and 1080p only, at $2.10 with sound or $1.40 with generate_audio off. Omni is cheaper than Kling 3 with sound at both shared resolutions; silent Kling 3 at 1080p ($1.40) undercuts Omni ($1.875).
Kling 4.0 has been announced. Sume's catalog lists kling-3, and this post prices only what Sume ships today.
10 seconds, every tier
Kling 3 has no 360p or 4K, and its price does not change between 720p and 1080p. Its sound switch moves the price: $0.21 per second on, $0.14 off.
| Resolution | Omni Flash 10 s | kling-3 10 s, sound | kling-3 10 s, silent |
|---|---|---|---|
| 360p | $0.375 | not offered | not offered |
| 720p | $1.25 | $2.10 | $1.40 |
| 1080p | $1.875 | $2.10 | $1.40 |
| 4K | $3.75 | not offered | not offered |
Other differences
- Length: Omni is 3 to 10 seconds; kling-3 is 4 to 15 seconds.
- Audio: Omni always generates native audio; kling-3 has a
generate_audiotoggle. - Ratios: Omni is 16:9 or 9:16 only; kling-3 also takes 1:1.
- References: kling-3 takes no reference inputs; Omni accepts image and video references.
Decision
If the delivery is a 720p vertical ad under 10 seconds, Omni is the cheaper request. Past 10 seconds, for a 1:1 ratio, or when a silent clip at 1080p is enough, test kling-3 against it with the same prompt using only the model field.
Sources
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