01
Put the footage in
The files straight off the camera. Several at once is fine, and so is more than one camera.
Raw footage in. Rough cut out.
PREPIX is an AI editing agent that watches your footage, removes bad takes, and builds a story-driven rough cut — through conversation.
PREPIX is a Mac and Windows desktop app.
Sunset already
Here!
Pic!
uh…
Driving the coast road, so good
This cafe is a lovely spot
Back to the sea
um… hold on
Go!
Sad to leave, but we will be back
Three steps to a first cut.
Hours of footage is the same three steps.
02
Say what you want
Something like "make it 20 minutes, keep it calm". No editing vocabulary required.
03
Get the first cut
Cut and ordered the way you asked, subtitles already on. Anything you do not like, say so and it changes.
What PREPIX does
Before it edits anything, it understands the footage.
You cannot decide how to edit until you know what was shot.
It watches your footage and understands it
It works out who appears, where they are and what they are doing, and what is being said. Two hours of watching, finished in under five minutes.
0L6A1431.MP4IMG_5781.MOV444A9858.MP4147A1979.MP40L6A1436.MP4IMG_5783.MOV444A9861.MP4IMG_5786.MOV0L6A1442.MP4147A1984.MP4IMG_5790.MOV444A9867.MP4
021:12 → 3:40Driving along the coast road
Shot from inside the car, sea on the right the whole way.
- Keywords
- seadrivesunset
- People
- One, driving
- Place
- Coast roaddaytime
033:40 → 5:02Pulled over to film the sea
Stops on the shoulder and gets out to shoot.
- Keywords
- sunsetparkedshore
- People
- One, filming
- Place
- Roadsidedusk
You direct the edit by saying it
The length, the feel, which scenes to keep: all of it is decided by saying so. Hundreds of adjustments you would have made by hand, in one sentence.
Cut the silences, and from each retake keep the best take.
Thinking
Two jobs: drop the silences, then choose between the retakes.
Finding silences41 places
Grouping retakes9 groups
Choosing a take per groupfocus · shake
Applying to the timeline21:00 → 12:40
Cut 41 silent stretches and kept the steadiest take from each of the 9 retake groups. Left 0.3s of air around every join so nothing clips a word, and trimmed the ends off two shaky ones. Three groups were close, so I took the later take — ask me to redo just those.
Ask, or just say what you want
It finishes the first cut for you
Scenes chosen, order set, subtitles on. Two hours of footage opens as a twenty-minute edit.
Source
0L6A1431.MP4IMG_5781.MOV444A9858.MP4147A1979.MP40L6A1436.MP4IMG_5783.MOV444A9861.MP4IMG_5786.MOV0L6A1442.MP4147A1984.MP4IMG_5790.MOV444A9867.MP4
021:12 → 3:40Driving along the coast road
Shot from inside the car, sea on the right the whole way.
- Keywords
- seadrivesunset
- People
- One, driving
- Place
- Coast roaddaytime
033:40 → 5:02Pulled over to film the sea
Stops on the shoulder and gets out to shoot.
- Keywords
- sunsetparkedshore
- People
- One, filming
- Place
- Roadsidedusk
It does the parts you repeat every time.
Dead air, verticals, subtitles — the work that eats most of the day.
SilenceStumbleRetake
Smart cutting
Bad takes, retakes, silent stretches and stumbled lines — it finds them all and cuts them out.
the bit by the sea
Driving along the coast road12:35 → 14:15Looking at the sea from the car21:02 → 21:48The coast road after dark38:10 → 39:04Scene search
Ask for "the bit by the sea" and it goes there. You do not need to know the file name.
Automatic subtitles
Subtitles are generated from the script. It reads the context to find natural places to break them.
- 1Open · Setting offPicking up the car at the airport
- 2Body · Coast roadDriving the coastline
- 3Body · The cafeA table looking out at the sea
- 4Close · SunsetEnding the day on the beach
Edit plan
Before anything is cut you see the running order it intends. Change it there if it is wrong.
CAM 1
CAM 2
CAM 3
Automatic multicam sync
Footage from several cameras, laid out on one timeline and lined up in sync.
Vertical shorts
It picks the fun moments and the important ones, and builds shorts out of them.
It hands off to the editor you already use.
PREPIX does not replace your editor. The cut and subtitles come out as a timeline — you finish where you always do.
Timeline export to Premiere Pro and Final Cut Pro — or straight out as a video file
It cuts your footage to suit its purpose.
From a vlog to an event recap — shot differently, so cut differently.
Vlog
Hours of footage, minutes worth keeping. The dead air and the stumbles come out, and the subtitles are already on.
Podcast
Two or three cameras lined up on timecode, cutting to whoever is speaking. Set it by hand a few times and it follows from there.
Scripted
Of every take you did over, only the last one survives. Delete a line from the transcript and the video goes with it; the vertical cut comes out separately.
Event recap
It finds the usable moments in a camera that ran all day. Ask for "the bit explaining the booth" and it collects those stretches.
Priced so you can just start.
No hidden costs, cancel any time.
Launch promotion — 20% off
Free
$0
For a creator directing their first edit
60 min / mo
Footage read per month, measured on the uploaded original
- Conversational rough cut: up to 5 min out
- 720p export
- 2 projects
- Community support
- Watermark included
Student
$8.58
$6.86 / mo
The full plan at half price, with student verification
180 min / mo
Footage read per month, measured on the uploaded original
- Conversational rough cut: up to 15 min out
- No watermark
- 1080p export
- 5 projects a month
- Verification required — personal and academic use
- No multicam or NLE export
Creator
Most chosen$33.15
$26.52 / mo
For the full-time solo creator shipping one or two a week
600 min / mo
Footage read per month · multicam counted as shoot time
- Conversational rough cut: up to 2 hours out
- Multicam, long-form projects
- 4K export
- NLE export: Premiere · Final Cut
- Priority processing
- Saved recipes and presets
Premium
Coming soonTo be announced
Send the rushes, get the finished cut back
Unlimited
Quoted per project
- Upload the rushes, receive the finished cut
- Agent plus a dedicated director
- Two to three rounds of revisions
- Delivery SLA announced separately
VAT included · Unused minutes do not roll over
FAQ
I have never edited anything. Can I use this?
Yes. Drop the footage in and a first cut comes out; say what you want changed. The complicated parts of the editor are there when you need them, and you can finish a whole video without ever touching them.
What counts against the monthly minutes?
The length of the footage you upload. Put in a 30-minute recording and 30 minutes come off, however many times you re-cut it afterwards. Cutting, trimming and exporting are unlimited.
What happens when I use up the minutes?
Only new footage stops being analysed. Anything already analysed can still be edited and exported. Creator can buy 60 more minutes for ₩4,900, and unused minutes do not roll over.
What if I do not like what it did?
Ask again for the part you do not like. Say "make this stretch shorter" and it redoes that stretch only, leaving the rest alone.
Can I take it into Premiere or Final Cut?
Yes, from the Creator plan. You get the cut and the subtitles as a timeline and finish where you always finish. Exporting straight to a video file works on every plan.
Where does my footage go?
The original files stay on your machine. They are not shared to the cloud.
The footage you never posted. Post it today.
The first 60 minutes each month are free. No editing experience needed.