# FLUX 3 Video

> Video from words or from your frames, a clip changed by your words, and a clip continued — up to 4K, with its own sound if you want it.

**FLUX 3 Video** is a video model that works four ways: from your words alone, from a picture of yours as the first frame (and a second one as the last frame if you like), on a clip you already have, changing what your words say, and on a clip you want to go on for a few more seconds. When Studio offers it, you find it under **Videos** on Studio's home and **Generation** in **Choose a model**.

## What it takes and makes

### Make — words to video

| Setting | What it takes |
| --- | --- |
| Your words | Required — up to 10,000 characters |
| Length | 5 to 20 seconds — you choose one |
| Quality | 720p, 1080p, 2K or 4K — starts at 720p |
| Shape | Auto, 21:9, 2:1, 16:9, 4:3, 1:1, 3:4 or 9:16 — starts at 16:9 |
| Sound | Can make sound with the video — a switch, off until you turn it on |
| Makes | A video |

### Animate — a picture comes to life

| Setting | What it takes |
| --- | --- |
| Your words | Required — up to 10,000 characters |
| Frames | A first frame (required) and, if you like, a last frame |
| Length | 5 to 20 seconds — you choose one |
| Quality | 720p, 1080p, 2K or 4K — starts at 720p |
| Shape | Auto, 21:9, 2:1, 16:9, 4:3, 1:1, 3:4 or 9:16 — starts at 16:9 |
| Sound | Can make sound with the video — a switch, off until you turn it on |
| Makes | A video |

### Edit — change a clip you already have

| Setting | What it takes |
| --- | --- |
| Your words | Required — up to 4,096 characters |
| Your clip | One video clip, up to 15 seconds long |
| Length | Follows your clip |
| Shape | Follows your clip |
| Sound | Silent video |
| Makes | A video |

### Extend — continue a clip

| Setting | What it takes |
| --- | --- |
| Your words | Required — up to 10,000 characters |
| Your clip | One video clip, up to 15 seconds long |
| New seconds | 5 to 20 seconds — you choose one |
| Quality | 720p or 1080p — starts at 720p |
| Shape | Follows your clip |
| Sound | Can make sound with the video — a switch, off until you turn it on |
| Makes | A video |

The price is never written here — prices change. It is on the model's page in Studio: on the **Make** button and beside each length, size or quality that changes it, before you press.

## Writing for it

Say what happens, in order, the way you would describe one unbroken shot. Choose a **Length** first — every whole second in its range.

**Shape** has an **Auto** choice: from words the model picks the shape; from a picture it keeps the picture's own.

**With a last frame** the video is made between your two pictures, at 720p or 1080p.

**Edit** keeps your clip's motion, timing and framing and changes what you describe — "make it snow", "turn the car red". **Extend** carries on from your clip's last moments: say what happens next, and choose how many new seconds. Both take a short clip; the table above says how long.

Turn **Sound** on for a take with its own sound.

Source: https://routix.studio/help/video-models/flux-3-video · Updated 2026-11-09