2026-10-08

Omni Flash 4K is 2x the 1080p price and 3x 720p: the ratios

Gemini Omni Flash 1.1 on Sume prices 4K at exactly twice 1080p and three times 720p per second. The ratio table and when 4K is worth paying for.

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4K Omni Flash costs $0.375 per second on Sume, 2.0x the 1080p rate of $0.1875 and 3.0x the 720p rate of $0.125. A 10-second 4K clip is $3.75.

Ratios against each tier

Sume list price, read 2026-10-08
Resolution	Per second	vs 360p	vs 720p	vs 1080p	10 s clip
360p	$0.0375	1.00x	0.30x	0.20x	$0.375
720p	$0.125	3.33x	1.00x	0.67x	$1.25
1080p	$0.1875	5.00x	1.50x	1.00x	$1.875
4K	$0.375	10.00x	3.00x	2.00x	$3.75

When 4K pays

The ratio is what you pay to re-run. A 4K ten-second clip you reject costs as much as three 720p ones, so never use 4K to find a prompt.

Explore at 360p, where a 10 s clip is $0.375.
Confirm at 720p, $1.25.
Render the 4K once, $3.75, for the approved prompt.

The 4K request

Only the resolution value changes.

{
  "model": "gemini-omni-flash-1.1",
  "prompt": "Aerial pass over a coastal road at golden hour, wind and surf sound",
  "duration": 10,
  "resolution": "4K",
  "aspect_ratio": "16:9"
}

Budgeting

A set of five 4K ten-second clips reserves $18.75 across the five submits.

Sources

Video generation (Sume docs)