Gemini Omni Fast AI Video Generator (Gemini Omni Flash, 720p)
The same Google video model at 720p, for roughly a third of the credits.
Gemini Omni Fast is not a different model. It is Google's gemini-omni-1.1-flash rendered at 720p instead of 1080p, which is why it keeps the native audio and the motion quality while costing roughly a third as much per clip.
That makes it the sensible default for anything Google-shaped. Social video, which gets compressed on upload anyway, rarely benefits from the 1080p tier. Testing a shot before committing to a final render always benefits from the cheaper one.
Everything else behaves exactly like the premium tier: native audio, 16:9 and 9:16 only, 4 or 8 second clips, and support for a start-frame image.
What Gemini Omni Fast is best at
Social video where 720p is enough
Testing a shot before a 1080p render
Clips with sound on a budget
Animating a photo with audio
Native audio at a lower price The only cheap way here to get sound generated with the picture.
Same motion engine Coherence and physics match the premium tier, because it is the same model.
Fast enough to iterate Cheap enough per clip that trying three variations of a shot is a normal decision.
Good for social 720p vertical survives platform compression with no visible penalty.
Where Gemini Omni Fast falls short
720p only. For a website hero or a large screen, the premium tier is the better render.
Only 16:9 and 9:16, same as the premium tier. No square output.
Still costs more per clip than Minimax or Luma, which do not generate audio.
Duration is approximate, because it is a prompt instruction rather than a parameter.
Gemini Omni Fast specifications
Provider: Google
Model ID: gemini-omni-1.1-flash
Resolution: 720p
Audio: Yes, native
Clip length: 4 or 8 seconds
Aspect ratios: 16:9, 9:16
Provider model ID: gemini-omni-1.1-flash
Aspect ratios: 16:9, 9:16
Clip lengths: 4, 8 seconds
What you can do with Gemini Omni Fast on this page
Social vertical Vertical clips with sound, sized for Reels, Shorts and TikTok.
Animate a photo Upload a still, add a line of motion direction, get a short clip with ambience.
Shot test Block out framing and motion cheaply before you spend premium credits.
Prompts that work on Gemini Omni Fast
Describe the ambience, not a soundtrack
A quiet home office in the afternoon. Sound: distant traffic, a keyboard, the hum of a laptop fan. No music.
Ambience is where native audio earns its keep. Asking for music gets you something generic; asking for room tone gets you something that sells the shot.
Vertical means vertical composition
Vertical 9:16. A smoothie poured into a tall glass, the glass filling the lower two thirds, hand entering from the top.
Saying 9:16 sets the canvas. Describing where things sit in that canvas is what stops the subject being cropped at the edges.
Three cheap takes, one expensive render
Run the same shot three times here with different camera moves, pick the one that works, then rerun it on Gemini Omni.
At a third of the price, variation is affordable. The expensive tier should only ever see a prompt you have already proven.
What Gemini Omni Fast costs
Cost on Prompt Reverse, 4 second clip: 35 AI Credits, 8 second clip: 65 AI Credits. AI Credits come from a one-time credit pack and never expire, with no subscription and no separate provider account.
Gemini Omni Fast vs the other models
Gemini Omni: Step up for the 1080p render once the shot is right.
Minimax Hailuo 02: Switch for the cheapest clips, if you do not need audio.
Kling video: Switch when a real person's face is the subject.
Luma Ray 2: Switch for smoother, more deliberate camera movement.
It is Google's gemini-omni-1.1-flash video model rendered at 720p instead of 1080p. Same model, same native audio, roughly a third of the credit cost.
Is Omni Fast worse quality?
Only in resolution. Motion coherence, physics and audio are identical because it is the same model. For social video, the difference is usually invisible after platform compression.
Should I use Omni Fast or Minimax?
Use Omni Fast when you want sound generated with the clip. Use Minimax when you want the cheapest possible silent clip.
Can it animate my photo?
Yes. Upload a still as the start frame and describe the motion you want. Keep the motion direction modest for the cleanest result.