An AI B-roll generator, used as image to video, starts from a still and adds motion. A product still often starts in Photoroom, and a layout crop often starts in Canva AI, before a motion tool opens. Runway, Luma Dream Machine, Kling, and Pika can each try that pass. The clip can also invent objects, warp a label, or move the camera in a way the still never showed. A closer look at two of them is Runway vs Luma Dream Machine. The wider list is AI Video Generation Tools. This page does not name a universal quality winner.
Key takeaway: Animate a still you have the right to use, write down what must stay still, and watch every new frame. Confirm clip length and price on the vendor page before you build a library.
Research reviewed: October 30, 2026. This is desk research by the AI Savr editorial team. We did not run a private lab test, and we did not invent scores, traffic numbers, or hands-on results. Confirm live prices on the vendor page before you buy.
How do you turn a still into AI B-roll?
Start with a still you have rights to, and say what should move. Open Runway when you want image to video inside a broader video editor. Open Luma Dream Machine for a motion pass from a still and a short prompt. Open Kling AI when you want to try a more camera-like move. Open Pika for a short motion test from one image. Confirm current clip limits on each vendor page. A presenter video is a different job from B-roll.
| Job | Open first | Person still checks |
|---|---|---|
| Image to video in an editor | Runway | New objects and warped labels |
| A motion pass from a still | Luma Dream Machine | What the prompt added |
| A camera-like move to try | Kling | Whether the product stayed intact |
| A short test from one image | Pika | The whole clip, frame by frame |
Four image-to-video seats
Runway for image to video in the editor
Runway is the seat when B-roll from a still needs to live next to other video tools you already use in Runway. Generate from a still you have rights to, with a note about what may move. The Runway vs Luma Dream Machine page compares those two products. It is not a winner's certificate.
Choose it when: you want the motion pass inside a wider Runway project.
Leave it when: you do not have rights to animate the still. A video tool does not create those rights.
Price and access: Confirm clip limits and the current plan on Runway's site. This guide does not quote a credit price.
A real use: Upload a product still and ask for a slow move that leaves the label readable. Watch the clip and reject it if the label, the logo, or the product shape changes.
Luma Dream Machine for a motion pass
Luma Dream Machine is the seat to open when you have one still and a short description of the motion, and you want a clip to judge. Compare it with a Runway pass of the same still if both are serious candidates. Choose with your eyes on that still. This page will not invent a quality score.
Choose it when: you are testing motion from a single approved image.
Leave it when: you need an on-screen presenter reading a script. That is an avatar tool, not B-roll.
Price and access: Confirm the current plan and clip limits on Luma's site. This guide does not quote a price.
A real use: Use the same still and the same motion note you used elsewhere, then watch for extra objects at the edges. Keep the clip only if the still's important details survive.
Kling when you want a camera-like try
Kling AI is the seat to try when the B-roll note is about a camera move around a scene that started as your still. Confirm the current clip length on Kling's site before you promise a duration to an editor. A cinematic look can still bend a straight line or a package.
Choose it when: you want to test a stronger camera move from a still you can use.
Leave it when: the still contains small type that must stay exact. Motion is a risk to that type.
Price and access: Confirm the current plan and clip limits on Kling's site. This guide does not quote a price.
A real use: Ask for a simple push-in on a still with a readable label. Scrub the clip. If the letters swim, do not use that take as B-roll.
Pika for a short motion test
Pika is the seat for a short test: one image, one motion idea, a quick look at whether the move helps the edit. Confirm current limits on Pika's site. A successful test is a clip you watched, not a stack of takes nobody reviewed.
Choose it when: you need to know quickly whether a still can move without breaking.
Leave it when: you are building a long sequence and you have not approved a single test frame.
Price and access: Confirm the current plan on Pika's site. This guide does not quote a price.
A real use: Animate one still with a single instruction, such as a slight parallax. Play it beside the original still and stop if a new object appears.
From a still to a clip you can trust
Use the same five moves for every image-to-video test. The still is the reference. The new frames are the risk.
- Start from a still you can animate. A photo you found online is a rights question before it is a prompt.
- Write the motion note. Say what moves, and say what must stay still, especially labels and faces.
- Generate one clip. Use one tool for the test. Add a second tool only to compare the same still.
- Watch every new frame. Look for extra objects, warped type, and a product that changes shape.
- Confirm limits and price. Read clip length and the plan on the vendor page before you order a library of takes.
Motion adds things the still did not contain
Image-to-video tools can invent objects, flicker, and bend straight edges. A face in the still raises a likeness question: do not animate a real person into a new performance without written permission. Music on top of the clip is a separate terms question. Confirm clip limits on the vendor page. A separate product review of another video tool is the Higgsfield AI review. This page stays with B-roll from a still, and it does not name a universal quality winner.
What a video editor should standardize
Keep a folder of stills you are allowed to animate, with the motion note in the filename or a sidecar. Editors may generate tests. A person who watched the frames approves a take for the timeline. Presenter videos stay in the avatar workflow, not in this B-roll folder.
Questions worth asking before you buy
Ask how long a clip can be on the plan you will buy, what you upload is used for, and how you download the file. Confirm those answers on Runway, Luma, Kling, or Pika's own page.
For companies that need more than a subscription
If B-roll feeds ads and a product page, store the source still next to the approved clip. An agent can queue tests. A person accepts the take, because a new frame can show something the brand did not shoot.
If an off-the-shelf tool cannot meet your data, approval, or security rules, talk to AI Savr about a custom AI agent. Use the directory to compare live tools first, and vendors can submit a product.
Frequently asked questions
What is AI B-roll from an image?
It is a short motion clip generated from a still. The still is the reference. The new frames need a person to watch them.
Which tool should I open?
Runway if you are already editing there, Luma for a motion pass, Kling to try a camera-like move, Pika for a short test. Match the job.
Is there a quality winner?
No. Compare the same still in the tools you are considering. This page does not name a universal quality winner.
What should I watch in the clip?
New objects, warped labels, bent edges, and any face or product that changes. Those frames were not in the still.
Where is Runway versus Luma covered?
On the Runway vs Luma Dream Machine comparison on AI Savr. Use it as a closer look, then judge your own still.
Can an avatar video replace B-roll?
No. A presenter reading a script is a training or talking-head job. B-roll is motion from a still, and it needs its own rights check.