Black Forest Labs: FLUX Video Edit

FLUX Video Edit applies a written editing direction to an existing clip. Use it when the starting point is footage you already have and the goal is to revise its visual treatment rather than create a shot from scratch.

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flux-video-edit

AvailableBlack Forest LabsVideoAsync

Price: From $0.03
Modalities: Video

About FLUX Video Edit

FLUX Video Edit is Black Forest Labs' tool for changing an existing video with a written instruction. You provide a source clip and a prompt of up to 4,096 characters, and it returns a transformed clip that keeps the source's duration, resolution, aspect ratio, and audio track. It restyles footage rather than generating a new shot or extending a clip.

Where it works well

The edited clip keeps the original duration, resolution, aspect ratio, and audio, so it drops back into an existing timeline.
One written instruction changes the visual treatment of the whole clip.
Inference settings are pinned on the server, so there are no steps or guidance values to tune.

When to choose another model

It cannot lengthen a clip; extension requests go to the video continuation endpoint of FLUX 3 Video.
Edited clips cannot be used as references for new videos, according to the documentation.
Prompts are limited to 4,096 characters, and the content safety levels restrict some categories.

Getting started

Create API key
Create a key in Console, then use it with every model on the platform.

Send your first request

Copy the example for your language and run it against the endpoint.

Video to videoTokenLab endpoint

POST/v1/videos/generations

curl -X POST "https://api.tokenlab.sh/v1/videos/generations" \
  -H "Authorization: Bearer sk-xxx" \
  -H "Content-Type: application/json" \
  -d '{
  "duration": 10,
  "operation": "video-to-video",
  "model": "flux-video-edit",
  "prompt": "Cinematic sunrise over a calm lake with gentle camera motion.",
  "video_url": "https://example.com/source.mp4"
}'

Parameters

Video to video

Parameter	Values and limits	Default	Notes
`duration`Required	≥ 1, ≤ 15	Not provided	Send the source clip length in seconds. Output length follows the source; final billing uses delivered duration. The omitted-field default is not verified.
`operation`	Not provided	Not provided	Not provided
`prompt`	Not provided	Not provided	Not provided
`video_url`	Inputs: ≥ 1, ≤ 1	Not provided	Source clip: at most 15 seconds, 720p, and 50 MiB.

Edits a source clip up to 15 seconds, 720p and 50 MiB. Output duration follows the source and determines the charge.

Set duration to the source clip length in seconds for the initial reservation. Final billing uses the delivered clip duration.

Pricing

The Verified price applies to Verified, which costs less on most models. The Official price is the model maker's published price and applies to the more reliable Official route. Auto bills the route that completes the request.

Pricing

per second

Verified price: —
Official price: $0.03per second

	Official priceper second	Verified priceper second	Discount
Price	$0.03per second	—	—

Usage & activity

Success rate is the share of requests that completed. Latency is how long a full response takes; P95 means 95% of requests finished within that time.

Usage & availability

Last 24 hours

Requests
Success rate
P95 latency
Total tokens

Model performance

Last updated Nov 13, 2026, 4:51 AM UTC

Metrics appear once privacy and data volume thresholds are met.

Data is based on aggregate user requests, excluding status checks.

Use cases

Restyling existing footage
Change a clip's look, such as turning daytime footage into a painted or night-time version, without reshooting.
Visual fixes in post
Apply a described change to a clip when the original audio and timing are already approved.
Variant creation
Produce several treatments of one clip for comparison before choosing a final look.

Prompt examples

Make the whole clip look like a hand-painted watercolour animation, keep the motion and the sound.

Change the scene from daytime to a rainy night with glowing streetlights.

Turn the red car into a matte black one throughout the clip.

FAQ

What does FLUX Video Edit do?

It transforms a source video according to a text instruction. The result keeps the original length, resolution, aspect ratio, and audio, so it works as a post-production step.

Can FLUX Video Edit make a video longer?

No. Duration stays the same as the source clip. To continue a clip, use the video continuation mode of FLUX 3 Video instead of this editing tool.

What inputs does it take?

A source video as an HTTP URL or base64 MP4 and a text instruction of up to 4,096 characters. A safety tolerance setting and a user identifier are optional.

How does it differ from FLUX 3 Video?

FLUX 3 Video generates new clips from text or images. FLUX Video Edit starts from footage you already have and changes how it looks, keeping its timing and sound.

How much does FLUX Video Edit cost?

On TokenLab, FLUX Video Edit costs $0.03 per second. The pricing table above shows the full breakdown.

Which endpoint should FLUX Video Edit use?

Use https://api.tokenlab.sh/v1/videos/generations for FLUX Video Edit. The request example below shows the matching code shape.

Which operations does FLUX Video Edit support?

FLUX Video Edit supports Video to video. Select an operation above to see its endpoint and request example.