Orchestrator.inc vs the Codex app (2026): running Codex in parallel

Short answer

If Codex is your only agent and your ChatGPT plan covers your usage, the Codex app is the simplest way to run Codex in parallel. Orchestrator.inc (formerly Agent Orchestrator) fits when Codex is one of several agents you run, or when you want each session's pull request, CI and review state tracked and sent back to the session that owns it. Choose the Codex app for one vendor and OpenAI-hosted Cloud tasks; choose Orchestrator for Codex next to Claude Code and other agents, with the PR loop handled for you.

At a glance

Codex app details are as of October 2026.

The problem in practice

You have a flaky test to fix, two small features, and a refactor. Four Codex threads is no trouble to start. The work starts after the agents push: one PR goes red on CI, a reviewer asks for changes on another, and a third now conflicts with main because the first one merged.

Someone has to notice each event, copy the context, and hand it to the right thread. With four sessions that someone is you.

How each tool handles it

Fix a failing test and merge it in the Codex app.

1. Open the project, start a new thread, and switch it to Worktree mode.
2. Describe the failure. Codex works in a detached-HEAD worktree under $CODEX_HOME/worktrees.
3. When it is done, click "Create branch here", review the diff, and create the PR.
4. Watch GitHub yourself. If a check fails or a reviewer asks for changes, paste that back into the thread. If main conflicts, ask Codex to rebase.
5. Merge on GitHub.

Same task in Orchestrator.inc.

1. Click New session on the project and pick Codex in Chat or Terminal, or use ao spawn from the CLI.
2. Orchestrator creates the worktree and branch, then runs the project's postCreate commands and symlinks for things like node_modules and .env.
3. Codex pushes and Orchestrator discovers the PR, polling GitHub or GitLab with no webhooks needed.
4. Failing check names, links and the end of each failed job's log, review comments and merge conflicts arrive in the Codex session as de-duplicated messages. Codex fixes and pushes again.
5. When the card reaches Ready to merge, you click Merge. Orchestrator never merges on its own.

Where the Codex app is a good fit

• OpenAI-hosted Cloud tasks. Cloud tasks run in OpenAI-hosted workspaces, can open a PR, and can be started from the web, mobile or desktop.
• One subscription. Local and cloud Codex usage share one ChatGPT allowance, and Worktree mode is a toggle.
• A single vendor app. There is no separate daemon to run, and the Windows release ships its own sandbox.

Where Orchestrator fits better

• Codex beside other agents. Orchestrator runs Codex in a structured Chat view or in the Codex CLI's own terminal UI, and a session can switch between the two without losing its worktree. The same board holds Claude Code, Cursor, OpenCode, Gemini CLI and the rest of its agents.
• Workflows where review and CI feedback should reach the agent on its own. Failing checks arrive with names, links and the end of the failed job's log, review comments arrive as focused feedback, and a merge conflict goes to the same session (review loop guide).
• Cross-vendor review. A Claude Code reviewer can look at a Codex worker's PR, or the reverse.
• A board you do not maintain. Cards sit in Working, Needs you, In review or Ready to merge based on what is actually happening to the session and its PR.
• Codex on your own servers. Install the Orchestrator host on a server or cloud VM and drive Codex sessions there from your desktop, with several hosts in one app, linked through your Orchestrator account or an HTTPS tunnel.
• Named branches, Linux and Android. Each worktree starts on a branch rather than a detached HEAD. The desktop app runs on Linux, and the mobile app sends push notifications when a session needs input or a PR is ready to merge.

Pricing

Running Orchestrator on your own machines is free and open source (Apache-2.0), with no account needed; you bring your own agent subscriptions or API keys. Optional Orchestrator Cloud plans, for agents that keep working while your laptop is closed, are Starter at $20/month and Pro at $40/month, with Enterprise pricing on request. When the Codex CLI runs inside Orchestrator, it uses whichever ChatGPT login or API key you already have, so Codex is billed exactly as it would be in a plain terminal.

As of October 2026 the Codex app is included in ChatGPT plans, and API-key use bills at API rates.

Who should pick which

Pick Orchestrator if

• Codex is one of several agents you run and you want one board for all of them
• you want failing CI, review comments and merge conflicts delivered to the Codex session that owns the PR
• you want a Claude Code or other reviewer on every Codex PR
• you work on Linux, or want chat and push notifications on Android as well as iOS
• you prefer a named branch per session rather than a detached HEAD

Pick the Codex app if

• Codex is your only agent and the ChatGPT plan already covers your usage
• you want OpenAI-hosted Cloud tasks launched from mobile or the web
• you want a single vendor-supported app with no daemon to run

Try it

Spawn two Codex sessions on one repository with the parallel issues guide.

Frequently Asked Questions

Can Orchestrator.inc run Codex, or only Claude Code?

Yes. Orchestrator runs Codex as one of its 38 harnesses, either in a structured Chat view or in the Codex CLI's terminal UI, and a session can switch between the two. It uses the Codex CLI you already have installed, signed in with ChatGPT or an API key.

How do I run Codex in parallel without the Codex app?

Give each Codex CLI session its own git worktree so they never edit the same files, then keep them open in tmux or terminal tabs. Orchestrator does this per session for you and adds a board that tracks each PR. The parallel issues guide on docs.orchestrator.inc walks through it.

Does the Codex app have a Kanban board?

Not as documented, as of October 2026. The app organises work in a sidebar by project and thread. Orchestrator's board places sessions by session, PR, CI and review facts, with no status set by hand.

Can I use the Codex app's Worktree mode outside the app?

No. As documented, worktrees are available only in Codex inside the ChatGPT desktop app. Orchestrator gives every Codex session a worktree and branch whether you use Chat or the terminal.

Does Orchestrator.inc have cloud tasks like Codex?

Yes, in two ways. Orchestrator Cloud plans keep agents working while your laptop is closed, from Starter at $20/month, with sign-up through the waitlist. You can also install the Orchestrator host on your own server or cloud VM and drive sessions there from your desktop.

Does Orchestrator.inc run on Linux?

Yes, with AppImage, .deb and .rpm builds alongside macOS and Windows. The Codex app is documented for macOS and Windows.