Escape room holiday team-event teaser: 10 s with sound for $1.25

An escape room can promote office holiday team events with a 10-second Gemini Omni Flash 1.1 clip that has synced sound, and at 720p the clip costs $1.25 on Sume. The model accepts 3 to 10 seconds, so 10 seconds is its maximum.

December group bookings are the busiest and the hardest to fill midweek. A teaser aimed at office managers should show tension and fun, plus a reason to book a weekday slot. It should not show your actual puzzles, which spoil the game.

What the model can and cannot do

From the Video Generation docs (read 2026-10-10): Gemini Omni Flash 1.1 accepts 3 to 10 seconds, resolutions 360p, 720p, 1080p and 4K, and aspect ratios 16:9 or 9:16 only. It produces synced audio, accepts image and video references but no audio reference, and has a video edit mode. A 1:1 square is not available, so crop later if a placement needs it.

Sound is useful for a teaser: a ticking clock, a lock clicking, laughter. Describe the sound in the prompt along with the picture, and keep any speech out of it. Generated dialogue is a gamble you do not need.

• Duration: 3 to 10 seconds.
• Ratios: 16:9 and 9:16 only.
• Audio: synced, but no audio reference input.

Price per second

Sume prices Omni Flash at the provider list times 1.25: $0.0375 per second at 360p, $0.125 at 720p, $0.1875 at 1080p and $0.375 at 4K (read 2026-10-10). A 10-second teaser at 720p is $1.25. Three variations, such as three themes for three different rooms, are $3.75.

A prompt shape that works for teasers

Write the prompt in three beats: the setting (a dim study with a locked cabinet), the action (hands turn a brass dial, a lock clicks), and the sound (a ticking clock, a low hum). Add a camera note, such as a slow push toward the cabinet. Keep faces out of focus, since generated faces vary between runs and you cannot promise a viewer that actors look a certain way.

For text such as the booking line, burn it afterward with video captions using cues, because a model clip with its own sound has no speech to transcribe. The cue job is $0.20 and works on clips up to 60 seconds.

Choosing between 720p and 1080p

For a story or a reel on a phone, 720p is plenty and costs a third less than 1080p per second ($0.125 versus $0.1875). Spend on 1080p only if the clip will be shown on a lobby screen or in an email header on desktop. A 4K render at $3.75 is rarely worth it for a teaser that people watch for ten seconds.

Run one cheap test first at 360p, where a 10-second clip costs about 38 cents, to check the framing and the sound design before you pay for the final. The test clip will look soft, but it tells you whether the camera move and the sounds read correctly.

Calendar and honesty

Aim the first teaser at the week of Black Friday on Nov 27, when many offices plan December events, and a second at mid-December for last-minute groups. Say what is true: group sizes you take, room length, and booking contact. A generated room looks like a set, and that is fine if the ad does not claim to show your real rooms. For other short sound-led teasers see the food truck weekly special clip.