Guide
Choose an AI video editing agent with six checks on a clip you've already filmed
Updated
An AI video editing agent edits the video for you and takes changes in plain words. Before you pick one, run six checks that tell you whether it fits the videos you actually make.
In short
- Choose an AI video editing agent by checking six things. Check what video it accepts, whether it uses your own screenshots and whether you can see and undo its changes. Then check what a change costs, what sizes it exports and what it can't do.
- Some agents are built for long recordings and cut them into many clips. Others take one short clip of you talking and finish that clip.
- A good agent shows what it cut, explains why when you ask, and saves every change as a version you can go back to.
- The price to compare is one whole video: the first edit, a couple of changes and the export, not only the monthly plan.
- Cutroom's Magic Editor takes one clip up to 3 minutes and exports one vertical 1080 by 1920 MP4, so it suits short talking videos, not long recordings.
What should you check before picking an editing agent?
These six checks work on any editing agent. The last column shows how Cutroom's Magic Editor answers each one, so you can compare it with the others you try.
Run the checks on your own video, not on a tool's demo. Put one clip you've already filmed through each tool's free plan or trial, then score each result.
Six checks for an AI video editing agent
Cutroom's answers come from the product as it is on 12 November 2026.
| Check | A good answer | Cutroom's Magic Editor |
|---|---|---|
| What it accepts | Your video's length and format, like a 1-minute phone clip or a 1-hour podcast | One clip of you talking, up to 3 minutes, as MP4, MOV or WebM |
| Your own files | Your screenshots placed on the words where you mention them | Up to 20 files, each put on the words where you mention it |
| Seeing and undoing changes | It shows what it cut and keeps versions | It answers "Why did you cut what you cut?" for free, and every change is a new version |
| Price of a change | Known before you send | 40 credits a change, 30 credits per started minute to export |
| Export sizes | The sizes you post, like vertical for Reels or wide for YouTube | One vertical MP4, 1080 by 1920 |
| What it can't do | Said plainly, up front | No font choice, no moving sentences, no posting for you |
Check: What it accepts
- A good answer
- Your video's length and format, like a 1-minute phone clip or a 1-hour podcast
- Cutroom's Magic Editor
- One clip of you talking, up to 3 minutes, as MP4, MOV or WebM
Check: Your own files
- A good answer
- Your screenshots placed on the words where you mention them
- Cutroom's Magic Editor
- Up to 20 files, each put on the words where you mention it
Check: Seeing and undoing changes
- A good answer
- It shows what it cut and keeps versions
- Cutroom's Magic Editor
- It answers "Why did you cut what you cut?" for free, and every change is a new version
Check: Price of a change
- A good answer
- Known before you send
- Cutroom's Magic Editor
- 40 credits a change, 30 credits per started minute to export
Check: Export sizes
- A good answer
- The sizes you post, like vertical for Reels or wide for YouTube
- Cutroom's Magic Editor
- One vertical MP4, 1080 by 1920
Check: What it can't do
- A good answer
- Said plainly, up front
- Cutroom's Magic Editor
- No font choice, no moving sentences, no posting for you
Does it take one clip, long recordings or your own files?
Editing agents are built for different kinds of video, so check that the agent takes the kind you film. Here is how four tools differ, as of November 2026.
- Submagic edits a video you upload. It adds captions, removes silences and inserts b-roll automatically.
- Cutroom's Magic Editor edits one clip of you talking, up to 3 minutes long. You can add up to 20 screenshots, recordings, product photos or a logo. Jacob puts each one on the words where you mention it.
- OpusClip is built for long videos. It cuts a long recording or a video link into short clips and can publish them to social platforms.
- Descript is a full editor with an AI co-editor called Underlord. Because it's a full editor, you can drop your own screenshots on the timeline yourself.
- For any other agent, upload one screenshot with your test clip and see where it lands.
How Cutroom's Magic Editor edits a video like this
Jacob is the AI editor inside Cutroom's Magic Editor: it edits your video for you, then changes it when you ask in a chat.
The 4 styles, as example edits
Steps
Three steps, four angles
Skit
Hook, hard stop, demo card
Verdict
The tester's verdict
Poster
Typography does the talking
Hover or tap an example to play it, without sound. These are example edits of each style; the presenters in them are generated with AI.
- Your take: one video of you talking, up to 3 minutes
- Your style: one of 4: Steps, Skit, Verdict or Poster
- Your files: screenshots, a screen recording or a logo, if you have them
- Your goal: what the video is for, in a few words, if you like
- Jacob makes it: normally 10 to 15 minutes, and you get an email
- Your edit: ask Jacob for changes in a chat, then export
Then you ask Jacob, for example
- “Make this about 10 seconds shorter”
- “Put a clip on the strongest sentence”
- “Change the music to something calmer”
Each change is a new version, and going back is free. First cut 250 credits, each change 40, questions free, export 30 credits per started minute.
Can you see and undo what it changed?
A good agent shows you what it removed and lets you take any change back. Ask why it cut a sentence, and it should name the words it cut and say why.
In the Magic Editor, asking "Why did you cut what you cut?" is free. Jacob answers from a log of its own edit. Every change Jacob makes is a new version. The earlier versions stay, and going back to one is free.
- Look for a transcript that shows exactly which words were cut.
- Check that you can bring a cut word back without starting over. In the Magic Editor you tap the word, for free.
- Check that each change is saved as a version you can return to.
A founder's app demo, before and after
In this example, Jacob makes the whole edit from one press of "Make my video". You then type the two requests below in the chat, and each one makes a new version you can go back from.
Drawing of an example clip, not a customer video
Before · the clip as filmed
A 60-second phone video of a founder showing her budgeting app
“So, um, this app tells you what you can spend today. You link your bank , uh, you link your bank once, and the home screen shows one number. … (pause) The link is in my bio.”
struck through = what Jacob cuts
After · Jacob's first edit, Skit style
“This app tells you what you can spend today. You link your bank once, and the home screen shows one number. The link is in my bio.”
- On “today”: your opening line in big words, then a sudden stop
- On “bank”: your screenshot connect.png on a card over your face
- On “number”: your screenshot home.png slides in on the same card
- On “bio”: a phone playing your screen recording, with your call to action
- Under the whole video: upbeat music and sound effects under your voice
window: connect.png
Then you ask Jacob
- “Make this about 10 seconds shorter”v2the same edit, about 10 seconds shorter, with the opening and the ending kept
- “Change the call to action to Try it free”v3the closing phone now says Try it free
What a change and an export cost
Agents charge in credits or minutes, and a plan's price says little on its own. Work out the cost of one whole video: the first edit, a couple of changes and the export.
In the Magic Editor, a 45-second video with two changes costs 360 credits. Lite gives you 1,250 credits a month for $19.99.
- The first edit costs 250 credits, and each chat message that changes the video costs 40.
- A question that changes nothing is free, up to 20 a day. If a change ends up changing nothing, the credits come back.
- The export is 30 credits per started minute, and exporting the same version again is free.
- Submagic's Starter plan costs $12 a month billed yearly and covers 15 videos a month, as of November 2026.
- Descript's Hobbyist plan costs $24 a month, or $16 a month billed yearly. It includes 400 AI credits a month for Underlord and other AI tools.
- Descript's pricing page doesn't say how many credits one Underlord edit uses, so ask before you compare.
What it exports and what it can't do
Check the sizes you post in before you pay. An agent that only makes vertical video is fine for Reels and TikTok, but not for a wide YouTube video.
- Cutroom's Magic Editor exports a vertical MP4, 1080 by 1920, 30 frames a second, with the sound levelled. There is no 16:9, square or 4K export, and no captions file.
- Descript exports up to 1080p on Hobbyist and up to 4K on Creator. OpusClip says it resizes any video for any platform.
- In the Magic Editor you can't pick a font, move a sentence or add new speech. The style sets the fonts.
- Cutroom doesn't post for you. You download the MP4 and post it on TikTok, Instagram or YouTube yourself.
When you need an editing agent, and when you don't
An editing agent is worth it when you post short talking videos every week and keep putting off the editing.
- If your videos are long, like podcasts or webinars, a clipping tool such as OpusClip fits better.
- If you need a wide video, several sizes or control over every frame, a timeline editor or Descript gives you that.
- If nobody wants to be on camera, an AI video generator makes the video from a script instead.
- If you post one video a month and like editing it, a free editor such as CapCut is enough.
Questions people ask
- What is an AI video editing agent?
- An AI video editing agent is a tool that makes the edit for you and takes changes in plain words. You give it your video, it edits it, and you ask for changes in a chat instead of working on a timeline.
- What should I look for in an AI video editing agent?
- Look at six things: what it accepts, whether it uses your own files, whether you can see and undo its changes, what a change and an export cost, what sizes it exports, and what it can't do.
- How do I test an AI video editing agent before paying?
- Use one clip you've already filmed. Put it through each tool's free plan or trial, then score each result on the six checks. In Cutroom, your first video is free, with no card.
- Is an AI video editing agent worth it?
- Yes, if you post short talking videos every week and editing is the part you skip. If you make one video a month or need full control over every frame, a normal editor is enough.
- Can an AI editing agent explain its edits?
- Some can. In Cutroom's Magic Editor you can ask Jacob "Why did you cut what you cut?" and it answers from a log of its own edit. Questions that change nothing are free, up to 20 a day.
- How much does one change cost in the Magic Editor?
- A chat message that changes the video costs 40 credits. A question is free, and if a change ends up changing nothing, the 40 credits come back.
- Does the Magic Editor post to TikTok or Instagram?
- No. You download one vertical MP4, 1080 by 1920, and post it yourself on TikTok, Instagram or YouTube.
Want to run these checks on your own clip? Upload one and let Jacob make the whole edit. Your first video is free.