Omni 4K costs 3x the 720p price and 10x 360p: the ladder on Sume

On Sume, Gemini Omni Flash 1.1 at 4K costs exactly three times the 720p price and ten times the 360p price for the same length. 1080p sits at 1.5 times 720p. The ratios come straight from the catalog list prices ($0.03, $0.10, $0.15 and $0.30 per second), and the 1.25 house margin does not change them.

The ratios

The margin multiplies every tier by the same 1.25, so ratios between tiers equal the ratios between the list prices. The table shows them for the default Auto length of 8 seconds.

Sume rounds each clip up to the next whole cent, so a clip total is ceil(seconds x rate), not a sum of fractional cents.

What this means for a test plan

A clip at 4K costs the same as ten clips at 360p of equal length. If you are testing prompts, ten drafts tell you more than one 4K render. If you are delivering a hero shot, the 3x step from 720p to 4K is the only extra spend on top of a clip you already approved.

The step from 720p to 1080p is smaller than it looks: 6.25 cents more per second, which is 50 cents on a 8 s clip. The step from 1080p to 4K is 18.75 cents per second, or $1.50 on 8 s. So a 1080p final is the cheaper upgrade if your delivery size is a phone screen.

Where the limits are

The ladder only applies where the model accepts the resolution. The Video Router docs list 360p, 720p, 1080p and 4K for Omni, 3 to 10 seconds, and 16:9 or 9:16. Aspect ratio does not change the price. Other catalog models have other tiers, so do not carry these ratios to them.

Because sume/auto is documented as defaulting to 720p and 8 s, a request that sets nothing lands at the $1.00 row when Auto uses Omni. Setting the resolution is the only lever that moves the bill by whole multiples.

The same length at every tier

For reference, a 8-second Omni Flash clip at each resolution. Every price is the seconds times the billable rate, rounded up to a whole cent, as of 2026-10-08.

Limits to remember

These apply to every request on this page, from the Video Router and Video generation docs:

• Length is 3 to 10 whole seconds in generation modes; an edit takes no duration.
• Aspect ratio is 16:9 or 9:16; an edit takes no aspect ratio.
• Native synced audio is always on, and generate_audio: false is rejected.
• There is no bitrate_mode, no reference audio and no seed.
• Billing is the provider list times 1.25 per output second, reserved at submit and shown in usage.cost.