Edit videos with Codex

Updated 29 October 2026

OpenAI's Codex is a coding agent, but with the right tools it's a capable video editor too. Cutcrow is a desktop video editor for Windows and Linux with Codex built in: you describe the edit in plain words, Codex makes it on a real timeline, and you can see it, adjust it by hand and undo it one request at a time.

What you need

Codex doesn't have to be installed first. In Cutcrow, open a project, pick Codex in the agent panel and click Install for me: Cutcrow runs OpenAI's official installer for you. Then click Connect and sign in and sign in with your ChatGPT account. If Codex is already installed, including on Windows in its own install folder, Cutcrow finds it.

How do you edit a video with Codex?

  1. Create a project and drop in your clips. Cutcrow transcribes them on your computer, word by word, so Codex can work from what's said.
  2. Describe the edit, for example: "Make three 30-second vertical clips from this interview with captions" or "Tighten the pacing and add a title at the start."
  3. Follow along. Codex uses Cutcrow's tools (cuts, captions, zooms, transitions, colour, titles) and each step appears in the chat.
  4. Review on the timeline. Each request is a change card you can undo in one click, and everything Codex made can be fine-tuned by hand.
  5. Export with presets for YouTube, TikTok, Reels, Shorts, Instagram, X and Discord.

Codex or Claude Code?

Both work with every feature in Cutcrow, and you can switch in the agent panel. Use the one you already pay for: a ChatGPT plan covers Codex, a Claude plan covers Claude Code. The model picker above the chat lets you choose a lighter model to make your plan go further.

What can Codex do in Cutcrow?

Does it upload my videos?

No. Your media and projects stay on your computer. Codex sends what it needs for the job (your requests, the transcript, frames it looks at) to OpenAI under your account, as any Codex session does. See the privacy policy.