Models
Extend Video · FLUX 3
Black Forest Labs · Extend · Audio
Continues from the last frame with audio, up to 20s.
- Lengths: 5 s, 8 s, 10 s, 15 s, 20 s
- Resolutions: 720p, 1080p
- Native sound and dialogue
Price per run
In credits; dollar values at the Creator plan rate ($0.0096 per credit).
5 s · 1080p · with sound442 · $4.25
5 s · 720p · with sound342 · $3.29
8 s · 720p · with sound547 · $5.26
8 s · 1080p · with sound707 · $6.80
10 s · 720p · with sound684 · $6.58
10 s · 1080p · with sound884 · $8.50
15 s · 720p · with sound1,025 · $9.86
15 s · 1080p · with sound1,325 · $12.74
How to prompt Extend Video · FLUX 3
Describe how the video continues from its final frames: the next action, camera move and sound.
You don't have to do this yourself: the AI director applies it to whatever you write.
Questions
How much does Extend Video · FLUX 3 cost?
5 s · 1080p · with sound costs 442 credits (about $4.25 on the Creator plan). The exact price is shown before you generate, and failed runs are refunded.
Can I use Extend Video · FLUX 3 commercially?
Yes. You own what you generate, subject to the model provider's terms.
Do I need to write a perfect prompt?
No. Write the idea in any language; the AI director rewrites it the way Extend Video · FLUX 3 understands best.