AI B-Roll Generator: Cinematic Clips From Text

At a glance

Build your prompt

Pick a preset, adjust the subject and scene, then copy the prompt. The optional photo preview stays in your browser: this page does not upload it. The generator is a separate site with its own terms and pricing.

1. Choose a starting point

• City aerial
• Coffee pour
• Product insert
• Rain window

Optional photo (preview only)

Choose a photo No file selected

Your photo is not uploaded by this page. It stays in this browser tab.

Subject

Scene and atmosphere dusk, low haze, glowing windows, distant traffic

Camera

Motion subtleslowmediumnonepreserve

Aspect ratio 16:99:161:1

Duration 5 seconds10 seconds

2. Copy the prompt

Generated prompt

Copy prompt Open Flash Omni Reset

Copying the prompt does not create an account or charge credits. The hosted generator opens a separate site with its own terms and pricing.

What you can make

How it works

1. Write a shot list first

   List the cutaways the edit needs: establishing, texture, transition, and reaction. Generate only the shots on the list.

2. One action per clip

   A pour, a step, a turn, or a light change. If the prompt contains “and then”, split it into two clips.

3. Choose a camera move

   Slow dolly, gentle orbit, locked-off, or aerial. A single move makes the clip easy to cut against dialogue.

4. Match the light

   Name the time of day and direction of light so the b-roll cuts with the main footage instead of fighting it.

B-roll prompt formula

Use this structure as a checklist. Replace the bracketed fields, keep the protection lines, and remove anything that does not apply to your shot.

Create a [duration]-second cinematic b-roll shot of [subject].
Action: [one physical action].
Camera: [one move], [shot size], [lens].
Light: [time of day, direction, quality].
Texture: [rain, dust, steam, fabric, film grain].
No people looking at the camera, no text, no logos, no watermarks.

• B-roll should not steal focus. Avoid faces looking into the lens unless the shot is a reaction.
• Name the lens and shot size. “Wide 24mm” and “macro 100mm” produce very different cutaways.
• Use one texture cue: rain, dust, steam, or grain. More than one turns into visual noise.
• Generate a little longer than you need so you have handles for the edit.

Model notes

These notes describe where each model tends to fit. They are not a ranking. Model availability changes by provider: WaveSpeed, SeeAPI, FAL, Replicate, and Kie all serve image and video models in this class. The hosted generator shows the available models and credit cost before you run a job.

• WaveSpeed
• SeeAPI
• FAL
• Replicate
• Kie

Three prompts you can adapt

Create a 5-second cinematic b-roll shot of a city skyline at blue hour with a river and car light trails. Slow forward aerial move over the river toward the skyline. Wide 24mm equivalent, smooth dolly. Low haze, glowing windows, distant traffic. Keep the horizon level and the buildings stable. No text, no logos, no watermarks.

Create a 5-second cinematic b-roll shot of coffee pouring into a ceramic cup on a wooden counter. Macro 100mm, 45-degree angle, locked-off with a tiny push-in. Warm morning window light from the left. Steam rises and the liquid settles. Keep the cup, carafe, and counter unchanged. No people looking at the camera, no text, no logos, no watermarks.

Create a 5-second cinematic b-roll shot of rain running down a window at night, with blurred amber and blue city lights beyond. Locked-off close-up, 50mm lens, shallow depth of field. Rain streaks down the glass while the lights pulse softly. Keep the window frame and composition stable. No text, no logos, no watermarks.

Common mistakes

FAQ

Related workflows