How to make videos with Codex
To make videos with Codex, use OpenMontage Studio: choose Codex as Studio's agent, sign in with your ChatGPT account and describe the video you want. Codex then works inside a full production studio. It researches the topic, writes and narrates the script, records, finds or generates the visuals, adds music and captions, edits everything together and delivers the finished film. It shows you the plan before anything expensive runs.
How it works
- Get Studio. Join the waitlist; beta access is going out in small groups. The private alpha runs on Windows.
- Pick Codex as your agent. In Studio, choose Codex, then sign in with your ChatGPT account, or add an OpenAI API key. Your ChatGPT plan or API account covers the agent's thinking; Studio never needs a separate AI subscription for it.
- Choose how media gets made. Use free local tools, connect your own provider accounts, or use OpenMontage credits.
- Describe the video. Say what you want in plain words, or start from something you have: a video you like, a document, a recording or your own footage.
- Review and direct. Approve the plan, then give notes on any scene, line or cut until it is right.
Already using Codex on its own? Studio also gives you instructions to connect an agent you already run to the same creative tools through a local connection on your computer.
Try asking
Make a 60-second launch video for our app. Use the brand kit and the dashboard recording. Developer audience.
Here is a podcast episode. Cut the five strongest moments into vertical clips with captions.
Turn this PDF into a two-minute narrated explainer with simple animated diagrams.
What Codex can make with Studio
- Research and writing: researches the topic on the web, writes the brief, script and on-screen words, and plans every shot.
- Generated footage and images: text to video with sound, images guided by your reference photos, lip-sync and motion transfer.
- Real footage and screens: free licensed stock, screen and app recording, and finding clips in your own footage by what is in the picture.
- 3D, motion and graphics: drives your own Blender, plus ready-made motion pieces, text animations and device screens.
- Voice and music: narration in more than 40 languages, a free offline voice, cleared music, songs from your lyrics, and audio repair.
- Editing and finishing: edit by editing the transcript, remove filler words and dead air, colour, stabilise, upscale, reframe for vertical, and burn in captions.
Codex on its own vs Codex in Studio
| Codex alone | Codex in Studio | |
|---|---|---|
| Writes scripts and code | Yes | Yes |
| Generates video, images, voice and music | Only if you wire up tools yourself | Built in, from local tools, your providers or credits |
| Records your screen and edits your footage | No | Yes |
| Shows a production plan for approval | No | Yes, before anything expensive runs |
| Delivers a finished, captioned film | No | Yes, in the formats you need |
What it costs
- The agent: covered by your own ChatGPT plan or OpenAI API account.
- Studio: free for 90 days for waitlist members; subscription plans are still being made and will be shared with the waitlist.
- Media: local tools cost nothing per use; your own provider accounts bill you directly; credits are optional.
Get into the beta
OpenMontage Studio is in private alpha. Beta access goes to the waitlist first, in small groups.
Related
Questions
Do I need to install Python, FFmpeg or any developer tools?
No. Studio is a desktop app. It sets up the tools it needs with your permission, and Codex runs inside it.
Can I use my existing ChatGPT subscription?
Yes. Sign in with your ChatGPT account inside Studio, or use an OpenAI API key instead.
Does my footage get uploaded anywhere?
Your studio runs locally. You decide what goes to the cloud: material is sent to a provider only when you choose one that needs it.
Can I use local models instead of cloud services?
Yes. Studio works with local tools such as a free offline voice, local transcription, your own Blender and your own ComfyUI.
Is OpenMontage Studio open source?
No. Studio is a new product from the team behind the open-source OpenMontage project on GitHub. The open-source project is a separate tool for developers.
Which computers does it run on?
The private alpha runs on Windows. Other platforms will be announced.