MarketCAT
ChatGPT Codex Video Editor: a whole YouTube video edited in ChatGPT Codex
This is the same editor as “Claude Video Editor”, only prepared as a native skill for OpenAI Codex (codex-video-editor). You drop in the raw footage and Codex edits a finished long 16:9 video and shorts in 9:16. Everything renders locally on your own computer with the HyperFrames engine.
New · version 2.0
Effects that make people say “wow”. With one command.
Video Editor 2.0 edited this video from a single recording. On top: the version with effects, below: the original. Everything was made locally on a computer, without CapCut and without video generators.
- 🪞“Before / after” reelA 16:9 recording becomes a 9:16 reel: effects on top, the original below. A format that stops the scroll.
- ✂️Cuts you out of the backgroundText behind you, a sticker with a white outline and a tilted frame, pixel-by-pixel segmentation.
- 📱A 3D object on your palmA 3D phone stands on your palm, follows your hand, breaks apart into labeled parts and snaps back together.
- 👁️AI sees and hearsBoxes around recognized objects in the shot and an on-screen transcript, word by word, with timestamps.
- 🌐Your real website in the videoThe browser types your address, clicks and scrolls to your offer. The editor takes the screenshots itself.
- 🔊Sound and precisionSound effects mixed with your voice and captions that land on every word, without running ahead of speech.
Already have Video Editor? The update to version 2.0 is included. The link arrives by email and is waiting in “My account”. Your projects and videos stay untouched, and the editor backs up the old version by itself.
No tools you do not need. Just ChatGPT Codex.
- 0 APIs for graphics and infographics
- 0 subscriptions
- 0 CapCut
- 0 Higgsfield
What it does for you
- Edits the video (long in 16:9 and shorts in 9:16)
- Trims the footage, removing pauses, silence, filler words and slip-ups
- Adds effects such as zoom and b-roll cutaways (openly licensed photos)
- Builds infographics in your colour palette (as code, not from a stock library)
- Creates a thumbnailwhich you edit with a single command
- Suggests 5 titles + an SEO description with timestamps and hashtags
You tell it at any moment what to change – only that gets corrected, not the whole render.
Real channels, real videos
Edited by our customers
These are shorts and long-form videos our customers edited with Video Editor and published on their own channels.
Editing with our tool? Send a link to your video to support@marketcat.app, and we'll feature it here.
Installation (the easy way)
- macOS / Linux: unpack it and run
install-skill.sh– the skill lands in~/.codex/skills/codex-video-editor. - Windows: copy the skill directory to
%USERPROFILE%\.codex\skills(instructions in the PDF). - Then in Codex: “Use $codex-video-editor and edit this file: /path/video.mp4”.
Requirements
OpenAI Codex (the app or the CLI), Node 22+, FFmpeg + ffprobe, Python 3.9+ and around 10 GB of space (models, cache, renders). Runs on macOS, Windows and Linux. The HyperFrames engine and the transcription model download themselves on the first render.
What you get for 24 € (one-time, special price)
- The complete editor folder with the skill
codex-video-editorand the local scripts. - An installer for macOS/Linux and manual instructions for Windows.
- A step-by-step PDF guide.
- You get the link to download the package right after your purchase.
Looking for the version for Claude Code (Anthropic)? See “Claude Video Editor” in our shop: the same engine, a different agent.
Karolina –
I have ChatGPT on the cheapest plan and had never used Codex, I downloaded it to my computer and it runs beautifully! AI right now is something incredible, on average I paid an editor about 150 zł per video and 50 zł per reel, a serious saving! I asked it to match my colour scheme and it did it with one command, never mind that I had to tell the editor 15 times and one video could take him a week XD
Julian –
My goodness, I was worried I would not manage, and all I had to do was write “edit the video” XD – thanks! It really does the job!
Dominik K. –
Dead simple. I completely changed the concept and added extra effects, glitch for instance, in one sentence, and on the next edit it already remembered my preferences. More than that, in the same thread where it edited a 15-minute video for me I said it should make 10 reels of the best moments out of it, and it did that without a single correction. Brilliant!
S.W –
Really good! I bought it for Claude Code and for ChatGPT, both of them work damn well! Of course I am subscribing to the channel! Will there be more great add-ons for editing videos?
Daniel W. –
Brilliant! The first video took an hour on my laptop (I went for a coffee, heh), then a few corrections and style changes, about 15 minutes, and now it makes a medium-length video the way I want on the first try, taking around 45 minutes, during which I am of course doing something else. I also have your Ads Auditor subscription and that does a great job too! Will there be discounts for regular customers? 😉 Looking forward to more really good things.
Daria –
It works, and better than I expected
Tark Cyfrowi Marketerzy –
Incredible! I threw a two-hour live stream at it and said it should make me 40 reels, then went to sleep. I got up and there they all were, beautifully edited! Shocking! GREAT WORK AICAT!
XYZ –
This is damn good!
Siwy –
Recommended, it does what it should
Cario –
I went by the comment about the live stream above and decided to buy, and the price is absurdly low compared with the hours lost. I had been looking for something like this for a long time and found one, but for 499 €, and nearly bought it. I bought from you and can confirm: it made 40 reels out of 2.5 hours of material for me too, and they were well edited straight away. Do send it a screenshot of an effect from another video, it will reproduce it without trouble. Genuinely recommended.
Bartek –
Once you have edited the first video and want different effects, take a screenshot of such an effect, write to it what the effect involves and send it the screenshot, it will do that too. Great skill!
Kcia –
Worth its weight in gold!
Dzigu –
This is great! I threw in a few holiday videos from different cameras and it edited them together brilliantly! Wow! Thanks!
X –
Fantastic!
Olek –
I used Captions before, but there are serious limits there, only a few templates and terribly expensive, here I decide myself how it will look! Worth its weight in gold!
Jaro –
Brilliant, thank you. Plus quick contact and fast replies
Gabi –
Heh, you tell it what to do and it edits it, and silly me was paying a so-called editor 150 zł for every edited reel XD
D.Z –
And my Remotion subscription is history! Awesome
K.W –
Very good and useful
Dominik W. –
The first installation used up some credits, but after that the edits cost next to nothing. On the 99 zł/month plan I easily stay within my limits, e.g. 10 reels from one video
Błażej Wit –
Great stuff
Marek –
My first full edit is done and I'm very pleasantly surprised. The editor analysed the raw footage, prepared a rough cut and responded to specific notes on shot length, order and pacing, and each new version came closer to my style. On top of that: transitions, captions, music, an end card and my own colour look based on the filter I'd been using in CapCut.
For me the biggest advantage is that I can work with it like with a human editor. I don't just say “edit it”, I can point to specific scenes and say what I don't like, and it fixes only those elements without wrecking the whole structure.
The first launch and setup take some time, and in more complex tests it asks for permissions quite often, but once the workflow is set up the potential is really big. After my first serious project, definitely 5/5.
Gabriela –
Totalny SZTOS!