AI Video Editor: which tool makes which edit, and what it costs
Last checked against the product on
LazyKiwi's AI Video Editor is not a timeline: it is a set of browser tools that each make one edit to a clip you upload — replace a person with a new character, add or remove an object, change the background, restyle the whole clip, enhance it, add subtitles or text, stabilize or flip it. Most tools take a 4–15 second MP4, MOV or WebM, the price is on the Generate button before anything is charged, and it runs from 1 credit per second (flip, stabilize) to 615 credits for a 5-second 720p restyle.
Specifications
| Input | One clip, plus what the tool needs: a character photo, a sentence, face photos — or nothing |
|---|---|
| Length | 4–15 seconds for most tools · convert tools (flip, stabilize, subtitles) up to 300 s · Character Swap takes longer clips (see its article) |
| Resolution | 480p, 720p or 1080p on the AI tools (1440p on Add / Remove Object) · convert tools keep the source size |
| File formats | In: MP4, MOV, WebM (GIF on the GIF tools) · Out: MP4 · Up to 50 MB per file |
| Credits | Per tool — from 1 credit per second (flip, stabilize) to 615 for a 5-second 720p restyle; see the table below |
| Free allowance | 40 free credits cover a 10-second Character Swap at 720p (40), a 5-second object removal at 480p (30) or 20 seconds of subtitles (40) |
| Watermark | None on paid plans (listed on the pricing page); Free plan: To be confirmed |
How to use it
- 1
Open the video tools
Video Generator → Tools, or open the Tools tab directly. Every edit is its own card; the buttons on the AI Video Editor page open the right one.
- 2
Pick the edit
Character Swap to replace a person, AI Video Object Remover to take something out, Add Object to Video to put something in, Video Background Changer, Video to Video to restyle, AI Video Enhancer, Add Subtitles, Add Text, Video Stabilizer or Flip Video.
- 3
Upload the clip
MP4, MOV or WebM. Most tools take 4–15 seconds and files up to 50 MB, so trim longer footage to the moment you want to change. The convert tools take up to 300 seconds; Character Swap accepts longer clips too.
- 4
Add what the tool needs
A character photo (Character Swap), a sentence saying what to remove, add or restyle, one photo per face (Video Face Swap) — or nothing at all (Enhancer, Stabilizer, Flip).
- 5
Check the price and generate
The Generate button shows the credits for your clip's length and resolution. The amount is held when you press it, charged when the result is ready, and returned if the job fails.
- 6
Download, or run the next edit
Results are listed under My Video in the workbench. Download the MP4, or upload it to another tool — swap the person first, then add captions, then stabilize.
Real results from the editing tools
Each clip is an output of one of the tools on this page, taken from that tool's own gallery.
Original Result Character Swap — the basketball player is replaced by a kiwi mascot; the dunk, the timing and the camera move are as filmed.
Original Result Video to Video — a breakdance clip restyled from the prompt “Cyberpunk night, neon rain, keep the motion”.
Result Add Subtitles to Video — the speech is transcribed, each line can be edited, and the captions are burned into the frame.
Which tool makes which edit
Prices are for a 5-second clip at 720p unless the row says otherwise; every tool shows the exact figure for your clip on its Generate button.
| Edit | Tool | You give it | Credits |
|---|---|---|---|
| Replace a person with a character | Character Swap | Video + 1 character photo | 20 — 4 per second (480p 3, 1080p 6) |
| Remove a person, logo or object | AI Video Object Remover | Video + what to remove | 50 — per second 4 / 8 / 10 / 12 (480p–1440p) + 10 |
| Add an object | Add Object to Video | Video + what to add; up to 9 reference images | 50 — same formula as Remove |
| Change the background | Video Background Changer | Video + the new scene; up to 2 reference images | 615 (480p 525, 1080p 1,650) |
| Restyle the whole clip | Video to Video | Video + the new look; up to 2 reference images | 615 (480p 525, 1080p 1,650) |
| Upscale and smooth motion | AI Video Enhancer | Video only | 615 (480p 525, 1080p 1,650) |
| Swap one or more faces | Video Face Swap | Video + a photo per face | 15 — 3 per second; each account's first swap of 5 s or less is free |
| Auto subtitles, burned in | Add Subtitles to Video | Video | 10 — 2 per second |
| Titles and timed text | Add Text to Video | Video + your text | 10 — 2 per second |
| Stabilize shaky footage | Video Stabilizer | Video | 5 — 1 per second |
| Flip or mirror | Flip Video | Video | 5 — 1 per second |
Restyle, background change and enhance are priced on the same per-second formula, so a 10-second clip costs 1,640 at 720p and a 15-second one 3,075 — trim first. Full tables are in Credit costs.
Limits to know before you start
- One edit per run. To combine edits, download the result and upload it to the next tool.
- 4–15 seconds on most AI tools. Add and Remove Object stop at 5 seconds at 1080p and 1440p. The convert tools take up to 300 seconds; Character Swap accepts longer clips (see its article).
- 50 MB per file. Compress or trim larger exports before uploading.
- A prompt is required for Remove Object, Add Object and Video to Video — a missing prompt stops the job before any credits move.
- The generative tools re-render the frame. Add Object, Remove Object, Background Changer and Video to Video keep the action and camera move, but small details elsewhere in the frame can shift. Check the result before replacing the original in your edit.
- Output is MP4 at the resolution you pick; the convert tools keep the source resolution.
What it is not
There is no multi-track timeline, no cuts or transitions and no audio mixing. For assembling a long video, use a desktop editor and bring the shots that need an AI edit — a person replaced, an object removed, a new look — to LazyKiwi, then drop the MP4 back into your project.
FAQ
Is the AI video editor free?
Signing up is free and comes with 40 credits, topped back up to 40 each month on the Free plan. They cover a 10-second Character Swap at 720p, a 5-second object removal at 480p or 20 seconds of subtitles. Restyle, background change and enhance start at 525 credits, so they need a plan or a credit pack. Every run shows its price on the Generate button before anything is charged.
Can I replace a person in a video?
Yes. Character Swap replaces the whole person — face, hair, build and outfit — with the character from one photo and keeps the motion, timing and camera as filmed. If the clip has several people, you choose which one is replaced.
Can I remove a person or a logo?
Yes. The AI Video Object Remover erases whatever you name — a passer-by, a logo, a cone — and fills in the background. To put someone else in their place instead, use Character Swap. For burned-in captions, see the remove text from video tool page.
Does it add captions automatically?
Yes. Add Subtitles to Video transcribes the speech, lets you fix any line and burns the captions in, for 2 credits per second of clip.
Is it a timeline editor like CapCut or Premiere?
No. It does the AI edits that are slow by hand — removal, backgrounds, restyling, replacing a person — one at a time. For cutting a long video on a multi-track timeline, use a desktop editor and bring clips here for those edits.
Does it work on PC, Mac and phones?
Yes. Everything runs in the browser on Windows, Mac, Chromebook, iPhone and Android, with nothing to install.
What files can I upload?
MP4, MOV or WebM up to 50 MB per file; the GIF tools also take animated GIFs. Results download as MP4.
Will it change the parts I did not ask to edit?
The tools are built to change only what you describe and keep people, motion and timing as filmed. The generative tools re-render the frame, so small details can shift; if something moved that should not have, run it again with a more specific description.