The two flagship video models here answer two different questions. One is the only model that generates sound with the picture. The other keeps a real person's face recognisable through motion.
Choose Gemini Omni when the clip has to stand alone with sound, when the physics have to be plausible, or when it is going on a hero at 1080p. Choose Kling 3.0 Standard when a real person's face is in the shot, when you need square output, or when the budget has to stretch across several clips.
Video costs an order of magnitude more than images, so the model choice carries real money and the wrong pick is expensive rather than merely annoying. Google's Gemini Omni Flash and Kling AI's Kling 3.0 Standard are the two models most of that money goes to, and they are not substitutes.
Gemini Omni is the only model on this platform that generates ambience, effects and speech along with the picture, which means a clip can stand on its own without a sound pass. Kling is the model to point at any shot with a real person in it, because identity holding steady across a clip is the hardest part of animating a person and the main reason to pick it.
| Gemini Omni Flash, 1080p | Kling 3.0 Standard | |
|---|---|---|
| Made by | Kling AI | |
| Model ID | gemini-omni-1.1-flash | fal-ai/kling-video/v3/standard |
| Credits | 100 credits (4 second clip), 200 credits (8 second clip) | 35 credits (4 second clip), 70 credits (8 second clip) |
| Cost on a credit pack | $1.61 to $1.92 4 second clip, $3.22 to $3.85 8 second clip | $0.56 to $0.67 4 second clip, $1.13 to $1.35 8 second clip |
| Aspect ratios | 16:9, 9:16 | 16:9, 9:16, 1:1 |
| Clip lengths | 4 or 8 seconds | 4 or 8 seconds |
| Native audio | Yes, native | No |
| Start from your own photo | Yes | Yes |
| Best at | Google's flagship video model, and the only one here that generates sound with the picture. | The model to use when a real person's face is in the shot. |
Read more about each model: Gemini Omni and Kling.
A silent clip is a resource. A clip with ambience, effects and speech is a finished thing. Gemini Omni generates audio natively with the picture, and that is not a convenience feature: it removes an entire production step, and for anybody making social video without an editor it is the difference between shipping and not.
Kling produces no audio. Clips are silent and need a separate sound pass, which is fine if you are editing anyway and a real cost if you are not. Before comparing anything else on this page, decide whether your clip needs to be finished when it comes out of the generator.
If there is a recognisable person in the shot, Kling is the pick and the price difference does not change that. Identity stays stable across the clip, limbs and gait and gesture behave plausibly instead of sliding or duplicating, and it takes your photo as the start frame and builds motion from it rather than reinterpreting the scene. Dance, movement and gesture are where it is clearly ahead.
Gemini Omni preserves a subject from your image too, and does it well, but Kling's image-to-video is the stronger of the two at the specific job of animating a photo of a real person. On this platform the photo-animation tools reflect that.
Gemini Omni's own strength in motion is different and worth naming: subjects keep their shape and proportions through movement rather than melting at the edges, and pouring, falling, splashing and cloth behave close enough to real that the clip does not read as AI at a glance. For product, food and material shots, that plausibility is the reason to pay for it.
Gemini Omni accepts 16:9 and 9:16 only. There is no square output, and a 1:1 request is served as 9:16. Kling accepts all three, which makes it the only one of the two that covers square social placements.
This catches people out because square is a normal thing to want and nothing about a flagship model suggests it would be missing. If your placement is a square feed post, the ratio row in the table on this page decides the model for you.
Gemini Omni is by far the most expensive model here per second of video, and Kling sits mid-priced. The table on this page has the exact credit figures for both clip lengths, computed from the live pricing registry. The gap is large enough that it changes how you work rather than just what you spend.
The pattern that avoids wasting it: block the shot out on something cheap, then render once on the model that suits it. Gemini Omni Flash at 720p is the same motion engine as the 1080p tier at roughly a third of the credits, which makes it the right place to find out whether a shot works before paying for the full render. Grok Imagine Video is cheaper still for scenery where neither audio nor faces are in play.
One more thing worth knowing before you budget: on both models the clip length you pick is approximate. Gemini Omni treats duration as a prompt instruction rather than a hard parameter, and Kling's lengths map onto the provider's own 5 and 10 second tiers, so a 4 or 8 second request lands near rather than on the number. Generation takes minutes on Gemini Omni, not seconds.
It depends on one thing about your shot. If a recognisable person is in it, Kling 3.0 Standard is the pick, because identity holding steady through motion is what it does best. If the clip needs to come out with sound already on it, or if plausible physics on materials matter, Gemini Omni is the pick and it is the only model here that generates audio with the picture.
Kling 3.0 Standard, by a wide margin. Gemini Omni is the most expensive model on the platform per second of video. The exact credit figures for 4 and 8 second clips on both models, and the dollar range across credit packs, are in the table on this page and computed from the live pricing registry.
No. Kling clips are silent and need a separate sound pass. The two Gemini Omni tiers are the only models on this platform that generate ambience, effects and speech along with the picture.
Only Kling. It accepts 16:9, 9:16 and 1:1. Gemini Omni accepts 16:9 and 9:16 only, and a 1:1 request is served as 9:16. If your placement is a square feed post, that settles it.
Approximately, on both. Gemini Omni treats duration as a prompt instruction rather than a hard parameter. Kling maps clip lengths onto the provider's own 5 and 10 second tiers. If you need an exact length, trim in an editor after generating, and budget for the length you asked for rather than the length you get.
Gemini Omni Flash at 720p runs the same motion engine as the 1080p tier for roughly a third of the credits, so it is the right place to find out whether a shot works. For scenery where neither audio nor faces matter, Grok Imagine Video is cheaper still.
Run one prompt through both models, see every comparison in one place, or browse all 12 models with specs and prices. Pay as you go, no subscription, credit packs never expire.