Upload a clip you already have and it keeps going. FLUX 3 reads the final frames of your footage and shoots the next 20 seconds in the same scene, with sound written in the same pass. Feed the result back in and the sequence keeps growing.
- Continues an mp4 you supply, up to 15s and 50MB in
- 5 to 20 seconds out, at 720p and 1080p
- Sound written in the same pass, not added afterwards
Five ways in, one finished clip out
Most video models start from nothing every time. This one can start from what you already shot. Pick the door that matches what is on your disk.
Continue a video
Hand it an mp4 and it picks up where the footage stops, holding the scene, the lighting and the motion. This is the mode nothing else here does with a file you supply.
1 mp4, up to 15s and 50MB
A storyboard of stills
Three or more images become the spine of the clip. The first opens it, the last closes it, and the rest land evenly spaced between them, so you direct the beats instead of hoping for them.
3 to 10 images, explicit length required
A first and last frame
Two images and it fills the middle. Useful when you know exactly where a shot has to start and end and want the motion between them written for you.
2 images, png, jpeg, webp, up to 20MB each
One opening image
A single still opens the clip pixel for pixel, then moves. The straight image to video path, with the same native sound as every other mode here.
1 image, reproduced exactly as frame one
Just a prompt
Nothing to upload. Describe the scene, the camera and the audio you want, and it shoots the whole thing from the sentence.
Up to 5000 characters
One rule and that is all: images and a video to continue from cannot ride together in the same request. Pick the one that matches your starting point.
How it works
Three moves, and only the first one is yours. Nothing in this flow needs editing software.
- 1Drop the clip inOpen the studio, pick FLUX 3 and attach the mp4 you want more of. Attaching a video is what selects the continuation mode; there is no separate switch to find.
- 2Say what happens nextOne line is enough: where the camera goes, what changes, what it should sound like. The prompt steers the continuation; your footage supplies everything else.
- 3Pick a length and goAnything from 5 to 20 seconds. Sound is on by default and written to match, so what comes back is finished rather than a silent draft. Try a draft run first if you are still tuning the prompt.
Length
20 seconds a run, and the runs stack
The ceiling on one generation is 20 seconds, which is where most of the field stops. The difference is what you can do with that output: it is a legal input to the next run. Continue the clip you just made, then continue that one, and the length of the finished piece stops being a property of the model and starts being a decision about budget.
- First run20s
- Continue once40s
- Continue twice60s
- Continue again80s
Each run continues the previous one from its final frames, so the seams are inside the model rather than in an editor. Continuation runs are priced on their own rate, which the studio shows before you commit.
Free to start
Try it on footage you already have
You do not have to buy anything to see what it makes of your material. Creating a Kubeez account comes with starting credits, and this runs on the same balance as everything else.
- No card to create an account
- Starting credits cover a draft run end to end
- Same balance across video, images, sound and captions
Starting credits are a trial allowance rather than ongoing free usage.
Plans
Pick a plan and start shooting
Video runs on the same balance as everything else on Kubeez, so a plan covers this alongside images, sound, captions and the rest. Continuing a clip costs more per second than generating one from text or a still, and the studio shows the exact cost of a run before you start it.
Studio Pro
Studio value with extra headroom.
2 seats included
What you'll generate
- Images~1,600
- Songs~492
- Videos~640
- Separations~1,066
- Caption Minutes~213
- All modelsIncluded
Starter
Low tier generations for regular use.
What you'll generate
- Images~275
- Songs~84
- Videos~110
- Separations~183
- Caption Minutes~36
- All modelsIncluded
Pro
Access full experience.
What you'll generate
- Images~650
- Songs~200
- Videos~260
- Separations~433
- Caption Minutes~86
- All modelsIncluded
Powerhouse
Most cost efficient.
Extra seats ~$23/seat/mo
What you'll generate
- Images~3,250
- Songs~1,000
- Videos~1,300
- Separations~2,166
- Caption Minutes~433
- All modelsIncluded
Enterprise
For teams that outgrow standard plans.
Pricing tailored to your team
What's included
- Custom number of seats
- Custom credit volume
- Invoice billing
- Priority support
Starter
Low tier generations for regular use.
What you'll generate
- Images~275
- Songs~84
- Videos~110
- Separations~183
- Caption Minutes~36
- All modelsIncluded
Pro
Access full experience.
What you'll generate
- Images~650
- Songs~200
- Videos~260
- Separations~433
- Caption Minutes~86
- All modelsIncluded
Studio Pro
Studio value with extra headroom.
2 seats included
What you'll generate
- Images~1,600
- Songs~492
- Videos~640
- Separations~1,066
- Caption Minutes~213
- All modelsIncluded
Powerhouse
Most cost efficient.
Extra seats ~$23/seat/mo
What you'll generate
- Images~3,250
- Songs~1,000
- Videos~1,300
- Separations~2,166
- Caption Minutes~433
- All modelsIncluded
Enterprise
For teams that outgrow standard plans.
Pricing tailored to your team
What's included
- Custom number of seats
- Custom credit volume
- Invoice billing
- Priority support
Test any model with one-time credit packs
Credits never expire and don't require a subscription — buy a pack, generate, see if Kubeez fits.
Quick refill
Quick refill for short bursts of generation.
Credits
500
You pay
$7.27
Standard pack
Mid-size pack at the standard per-credit rate.
Credits
1,500
You pay
$21.80
Volume pack
Larger pack with a volume discount built in.
Credits
5,000
You pay
$72.66$69.03
Production pack
Best per-credit price for sustained production.
Credits
15,000
You pay
$217.99$196.19
Who this is for
Anyone holding a clip that stops too soon, and no reason to open an editor to fix it.
Ads that need a longer cut
The six second version exists and the fifteen second slot does not. Continue the one you have instead of reshooting it.
Social formats
One source clip, extended to whatever length the platform this week wants, without the scene drifting.
B roll and transitions
Carry a shot a few seconds further so an edit has somewhere to land.
Product demos
Keep the same product, the same lighting and the same table, and just show more of the thing working.
Pitch and explainer films
Build a sequence a run at a time, checking each piece before you pay for the next.
Storyboarded sequences
Up to 10 stills become the beats, and the model writes the motion between them.
What it does not do
The constraints up front, before you spend a run.
Not an unlimited length
One run is 5 to 20 seconds. Longer means chaining runs, and each one is its own generation and its own cost.
Input clips are capped
The video you continue from must be mp4, at most 15 seconds and 50MB. Trim before uploading rather than after.
Images or a video, never both
A request carrying stills and a clip to continue is rejected before it costs anything. Pick one starting point.
Drafts are 720p
The fast preview tier renders at 720p only. Use it to settle the prompt, then run the same request at full quality.
Questions
Yes. Upload the mp4 and it continues from the final frames. It has to be at most 15 seconds and 50MB, so trim a long recording down to the tail you want continued.
One run produces 5 to 20 seconds. Because the output can be fed back in as the next input, the finished sequence can run as long as you are willing to pay for, a run at a time.
Continuation reads the closing frames of your clip, so the setting, lighting and subjects carry over. Big changes are better asked for in the prompt than hoped for.
Yes, in the same pass. Ambient sound, effects and speech are generated with the picture rather than added afterwards. You can turn it off for a silent clip, which costs the same.
Per second of output, and continuing a clip is priced higher per second than generating from text or a still. The exact rate for the run you have set up is shown in the studio before you start it.
A fast, much cheaper 720p preview. Use it to check that the prompt does what you meant, then rerun the same setup at full quality.
Yes. FLUX 3 is available through the Kubeez API and the Kubeez MCP server, including the continuation mode, with the same limits and the same balance as the studio.
720p and 1080p. Draft runs are 720p only. Aspect ratio can be set explicitly or left on auto, which reads it from your prompt and inputs.
Your clip does not have to stop there
Upload the footage you have and get 20 more seconds of it, with sound, in one run.
