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Flux 3 Extend Video

All video to video models

FLUX 3 is Black Forest Labs' frontier video model. This endpoint continues an existing clip beyond its final frame, generating additional footage that stays consistent with the original motion and scene.

Inference$ Commercial useFrom 93 credits per run

About Flux 3 Extend Video

FLUX 3 is Black Forest Labs' frontier video model. This endpoint continues an existing clip beyond its final frame, generating additional footage that stays consistent with the original motion and scene.

stylizedtransformlipsync

Pricing

A run with the default settings costs 93 credits. The exact cost updates in the playground as you change settings, and you're only charged when you press Run. Failed runs are refunded automatically.

Inputs

prompttextarearequired

The text prompt describing how the video continues from the source clip's final frames.

aspect_ratioselectdefault: "auto"

Aspect ratio of the generated video. `auto` lets the model choose.

Options: auto, 21:9, 2:1, 16:9, 4:3, 1:1, 3:4, 9:16

resolutionselectdefault: "720p"

Resolution of the generated video. `1080p`, `1440p` (2K) and `2160p` (4K) are finished by the video upsampler; exact dimensions depend on the aspect ratio.

Options: 720p

durationselectdefault: "auto"

Duration of the generated video in seconds. `auto` lets the model choose.

Options: auto, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20

generate_audiobooleandefault: true

Whether to generate audio for the video.

safety_toleranceintegerdefault: 2

The safety tolerance level for the generated video. 0 is the strictest and 4 is the most permissive.

video_urlfilerequired

URL of the input video. MP4, under 50 MB and under 15 seconds.

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