FLUX 3

Black Forest Labs' versatile video model: build a clip from text, a first frame, a first-and-last-frame pair or up to 10 keyframes, and extend an existing MP4. 720p/1080p, 5–20 seconds, optional audio.

Cost

from 10 tokens/s

VideoProvider: Black-forest-labs

Try FLUX 3 in Givon AI

Open a working project for regular creation, or use Playground to inspect the model parameters.

Create in a project Open in playground Use through API

Use through API

Request fields, constraints, and ready-to-use examples for developers. The user workflow starts above.

Run generation

IDEMPOTENCY_KEY="${IDEMPOTENCY_KEY:-$(uuidgen)}"
curl -X POST https://api.givon.ai/api/v1/generations \
  -H "Authorization: Bearer $GIVON_API_KEY" \
  -H "Idempotency-Key: $IDEMPOTENCY_KEY" \
  -H "Content-Type: application/json" \
  -d '{"type":"video","model":"flux-3","input":{"prompt":"cinematic drone shot over a city at night","aspectRatio":"auto","resolution":"720p","duration":5,"audioEnabled":true}}'

Input fields

* required

Field	Type	Default	Allowed
prompt*`prompt` Generation prompt describing the scene, action and direction.	string	—	up to 20000 chars
aspectRatio`aspectRatio`	string	auto	auto, 21:9, 2:1, 16:9, 4:3, 1:1, 3:4, 9:16
resolution`resolution`	string	720p	720p, 1080p
duration`duration`	number	5	5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
audioEnabled`audioEnabled` Additional model-specific guidance.	boolean	true	boolean
Start image`startImage` Asset input for the startImage slot.	string	—	image · asset, https, data
End image`endImage` Asset input for the endImage slot.	string	—	image · asset, https, data
Source video`sourceVideo` Asset input for the sourceVideo slot.	string	—	video · asset, https, data

prompt*prompt

Generation prompt describing the scene, action and direction.

Type: string
Default: —
Allowed: up to 20000 chars

aspectRatioaspectRatio

Type: string
Default: auto
Allowed: auto, 21:9, 2:1, 16:9, 4:3, 1:1, 3:4, 9:16

resolutionresolution

Type: string
Default: 720p
Allowed: 720p, 1080p

durationduration

Type: number
Default: 5
Allowed: 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20

audioEnabledaudioEnabled

Additional model-specific guidance.

Type: boolean
Default: true
Allowed: boolean

Start imagestartImage

Asset input for the startImage slot.

Type: string
Default: —
Allowed: image · asset, https, data

End imageendImage

Asset input for the endImage slot.

Type: string
Default: —
Allowed: image · asset, https, data

Source videosourceVideo

Asset input for the sourceVideo slot.

Type: string
Default: —
Allowed: video · asset, https, data

Cost

from 10 tokens/s

720pdefault10 tk/s

1080p18 tk/s

720p10 tk/s

1080p18 tk/s

720p10 tk/s

1080p18 tk/s

720p10 tk/s

1080p18 tk/s

720p24 tk/s

1080p32 tk/s

The variant is selected automatically from request fields, so you do not need to send it.

Capabilities

Modestext_to_videoimage_to_videofirst_last_frame_to_videovideo_extendkeyframes_to_video

Asset slotsstartImage:imageendImage:imagesourceVideo:video

Get API key

Where to use this model

AI video generator Image to video