OpenAI Codex integration
Run Codex from the Codius command center.
Connect one Codius key in App settings and Codex receives the Codius provider and default model when the App launches it. You can still use its existing account behavior.
Availability
What is supported today.
Codius distinguishes desktop-provider support from hosted Codius API support so setup expectations remain clear.
Codius App prepares a custom provider for the Codex session. It does not overwrite Codex configuration files.
Requirements
Before connecting OpenAI Codex.
- Codius App installed on macOS, Windows, or Linux.
- An installed Codex CLI available to the local Codius environment.
- A Codius organization key and active Coding Plan for Codius models, or an existing provider account.
- Access to the repository and Git tooling required for the coding task.
Setup
Connect OpenAI Codex to Codius.
- 01
Install Codex using the official OpenAI instructions and confirm the codex command runs locally.
- 02
In Codius App, open Host Settings → Providers → Codius models.
- 03
Connect one organization API key and keep automatic model access enabled.
- 04
Add or open the target project.
- 05
Open the provider picker and select Codex for the task.
- 06
Start the agent. Codius supplies the provider and default model for the session.
Behavior
Accounts, plans, and data flow.
- Provider choice
- Disable automatic Codius model access or choose an explicit workspace provider to use Codex's existing account behavior.
- Repository access
- Codex and Codius App run locally with the repository permissions granted by the user.
- Codius role
- Codius supplies the session model settings, visible workspace, worktree organization, terminal, browser, and review surfaces.
- Configuration safety
- The automatic integration is scoped to the launched process. Codius does not edit Codex's user or project configuration.
Important distinction
Know which product layer you are configuring.
Codex remains the agent; Codius App coordinates its workspace and can supply Codius model access at launch. Explicit workspace settings always take precedence over the automatic default.
Run OpenAI Codex from the Codius command center.
Keep the agent, terminal, worktree, browser, and review flow together while retaining the provider account you already use.