The ChatGPT app is the best way to steer Codex from your phone. DevReins is for when Codex is not the only agent on your machine, and a reply is not the only thing you need.
You only run Codex and want the deepest first-party experience. Remote connections keep your host's projects, files, credentials, local tools, approvals, and push notifications inside the official ChatGPT app.
You run Claude Code or Gemini next to Codex, want the blocked session to rise to the top of one queue, or want to open the shell, files, git, localhost, or desktop yourself instead of routing everything through Codex.
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| Feature | DevReins | OpenAI Codex Remote |
|---|---|---|
| Steer sessions & approve from phone | ✓ | ✓ |
| Push when the agent needs you | ~web push today; native apps planned | ✓official ChatGPT app |
| Agents supported | ✓native Claude, Codex, Gemini; other terminal agents via panes | ~Codex only |
| Full local environment through the agent | ✓ | ✓files, shell, MCP, browser via Codex |
| Independent operator terminal | ✓a real PTY you control | ~terminal output through Codex; no separate human PTY |
| Standalone files & repo-wide Git | ✓browse, search, status, log, diff, revert | ~file activity and diffs in the conversation |
| Cross-vendor attention queue | ✓ | ✗Codex sessions only |
| Connection control plane | ~local server + encrypted DevReins relay | ~OpenAI bridge; no self-hosted option |
| Works offline / LAN-only | ✓QR pairing, no cloud at all | ✗ |
| Price | ✓free during early access | ~requires an eligible ChatGPT account; check current plan rules |
Sourced from OpenAI's remote connections documentation and DevReins product behavior as of July 2026. Details change; check the source for the latest. See the full multi-tool comparison for Termius, Tailscale, and more.
OpenAI's remote setup is much more than remote chat. Codex runs against your own computer with its projects, files, credentials, and local tools, and the phone side lets you approve actions and review diffs, tests, terminal output, and screenshots. You can even switch between hosts. If Codex is your only agent, it is genuinely hard to beat.
The boundary is simple: remote connections are Codex, operated through Codex. They do not give you one queue across Codex, Claude, Gemini, and terminal sessions. And they do not give you a workspace of your own, where you can browse the repo, run a shell command under your own account, check localhost, or look at the desktop without prompting the agent first.
DevReins is built around getting you unstuck. The notification opens the exact interruption, the diff sits next to it, and you either reply or fix the thing yourself. Claude Code, Codex, and Gemini CLI are tracked natively; other terminal agents join through live panes. The terminal, files, git, localhost, and desktop are there because they end interruptions faster, not because model vendors lack local tools.
Plenty of people run both: the ChatGPT app for the deepest Codex experience, DevReins for everything else on the machine.
OpenAI's first-party way to use Codex on your own computer from the ChatGPT app or the web. A connected Mac or Windows host shares its projects, files, credentials, and local tools, and you can start or continue host-backed chats, approve actions, and review diffs, tests, terminal output, and screenshots from your phone.
No. Remote connections are a ChatGPT and Codex feature. DevReins tracks Claude Code, Codex, and Gemini CLI natively, and supports other terminal agents through live session panes.
One queue for every agent on your machine, not just Codex, plus controls you operate yourself: a real terminal, a file browser, repo-wide git, a localhost preview, and the desktop. You can inspect or fix things without asking Codex to do it for you.
Yes. The ChatGPT app stays the first-party Codex interface; DevReins adds the cross-vendor queue and direct machine controls alongside it.
Free during early access. Install, log in, and pick your machine. It runs on your own computer, and the relay forwards only encrypted traffic.
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