AI B-roll generator Short clips that cut into your edit
B-roll works when one shot does one thing well. Describe the action, the camera move and the light; Felo generates a short clip at up to 2K that you can drop into your edit.
- Ratio
- 6 ratios
- Length
- 4–30 s
- Resolution
- 480P–2K
- Output
- Downloadable clip
What makes good B-roll?
B-roll is the connective tissue of an edit: hands, weather, textures, a train passing, a room breathing. It rarely carries the story alone, so the best clips are simple, specific and easy to cut around. Felo generates them from a one-line description.
- 1
One action per clip, with a clear start and end.
- 2
A camera move that gives the editor room to cut in or out.
- 3
Consistent light and palette across a set of clips.
- 4
No dialogue or text baked into the frame.
How to write a B-roll prompt
B-roll prompts are short and physical. The goal is a clip that can sit under a line of narration without pulling focus.
Subject
The object, place or person in the insert — hands, rain, a neon sign, a passing train.
Action
One small movement with a clear beginning and end.
Camera
A simple move or a static frame that leaves room for a cut.
Light
The time of day and quality of light that matches the scene.
Sound
Ambience that matches the location. Optional; many editors mute B-roll.
“A close-up of rain hitting a puddle on a quiet city street at dusk. Ripples spread across the surface and break the reflection of a single warm window. The camera stays low and static, with a slow push in. No people, no text, no logos. Overall soundscape: soft rain on asphalt and distant traffic.”
How to generate B-roll
From an insert idea to a clip your editor can use.
Describe the insert
Name the subject, the action and the texture or light you want. Keep it to one shot.
Match your edit
Set the aspect ratio, duration and resolution to match the sequence you are cutting.
Generate a set
Ask for variations in the same thread — a different angle, a wider frame or a slower move — and pick the one that cuts best.
B-roll video model directory
Felo routes each shot to a video model. MiniMax H3 is available today; more models are on the way. Pick one in video settings, or let the agent decide.
MiniMax H3
Available nowText, image and first/last-frame video
4–15 s · 2K
Seedance 2.5
Coming soonFast, motion-heavy short clips
— · —
Wan 3.0
Coming soonFlexible generation modes
— · —
Gemini Omni Flash
Coming soonFast multimodal generation
— · —
Kling 3.0
Coming soonCinematic motion and character consistency
— · —
MiniMax H3 supports 21:9, 16:9, 4:3, 1:1, 3:4 and 9:16. Limits are shown in video settings and can differ by model; upcoming capabilities will be listed at launch.
AI B-roll examples
Real clips generated with Felo. Each one is a single, cuttable shot — copy a prompt and adapt it to your scene.
The Room That Exhales
Laundry Cloud
Mercury Garden
Crystal Peach
B-roll you can generate on demand
Fill the cutaways, inserts and transitions that are hard to shoot twice.
- 01
YouTube essays and explainers
Cover narration with a detail, location or action that matches the point.
- 02
Product and app demos
Generate inserts and atmosphere when a screen recording alone feels flat.
- 03
Podcast and interview visuals
Add movement and context while the conversation carries the audio.
Is Felo the right fit?
Good fit
- Missing cutaways
- Atmosphere and transitions
- Short insert shots
Not a fit
- Frame-for-frame matching
- Multi-clip editing
- Captions or voiceover
Key takeaways
- Felo generates short B-roll clips from a one-line description.
- Six aspect ratios let a clip match the sequence you are cutting.
- Clips download as standalone files; Felo does not assemble the final edit.
- Resolutions run from 480P to 2K, with 2K limited to 4–15 seconds.
Frequently asked questions
- What is AI B-roll?
- AI B-roll is supporting footage generated from a description instead of shot on location. It fills the gaps around an interview, a voiceover or a main shot.
- Can Felo generate B-roll for a video I am editing?
- Yes, as standalone clips. Describe the insert, download it and cut it into your editor. Felo does not assemble the final sequence.
- What should I include in a B-roll prompt?
- The subject, one small action, a simple camera move, the light and the ambience. Keep the description physical and specific.
- How long should a B-roll clip be?
- Most inserts are 4 to 10 seconds. Felo supports 4–30 seconds at 480P/768P and 4–15 seconds at 1080P/2K.
- Can I match the look of my other footage?
- Describe the light, palette and lens in the prompt, and reuse the same wording across clips. Felo keeps the context in the same thread, which helps consistency.
- Do the clips have sound?
- Yes, generated clips include an audio track. You can direct ambience, effects and music, or mute the clip in your edit.
- Can I generate vertical or square B-roll?
- Yes. Felo supports 21:9, 16:9, 4:3, 1:1, 3:4 and 9:16, so one insert can match a widescreen edit or a vertical feed.
- How much does Felo B-roll cost?
- Video generations use Felo points. The pricing page lists the points included with each plan.
- What are the main types of B-roll?
- Establishing shots set the place, cutaways give the viewer a detail, inserts show a hand or object close up, transitions carry a cut, and atmosphere shots add light, weather or texture.
- Can I generate a B-roll sequence with several shots?
- Generate one clip per shot, then assemble them in a video editor. Felo does not provide a multi-clip timeline, so each cutaway or insert is a separate generation.
Explore more Felo video tools
Build your next B-roll set
Describe the insert once, then generate variations until one cuts cleanly.
Generate B-roll