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Flux 3 First Last Frame to Video

All image to video models

FLUX 3 is Black Forest Labs' frontier video model. This endpoint generates the video between a defined start and end frame, interpolating a smooth, coherent transition from the first image to the last.

Inference$ Commercial useFrom 51 credits per run

About Flux 3 First Last Frame to Video

FLUX 3 is Black Forest Labs' frontier video model. This endpoint generates the video between a defined start and end frame, interpolating a smooth, coherent transition from the first image to the last.

stylizedtransformlipsync

Pricing

A run with the default settings costs 51 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 the video you want to generate.

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: 5

Duration of the generated video in seconds. An explicit duration is required to place the end frame.

Options: 5

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.

start_image_urlfilerequired

URL of the image used as the first frame of the video (PNG, JPEG, or WebP).

end_image_urlfilerequired

URL of the image used as the last frame of the video (PNG, JPEG, or WebP).

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