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Show HN: Run multiple instances of Codex(GUI) each with their own auth

A user developed a tool to run multiple instances of Codex (GUI), each with independent authentication, addressing the limitation of single-account usage. This allows users to manage multiple accounts simultaneously within the Codex application.

Background

- Codex is Anthropic's desktop application (GUI) for interacting with their Claude AI model, similar to how ChatGPT has a desktop app. It lets users have AI conversations and use Claude's features locally. - This GitHub tool (codex-multi-account) lets a user run several separate Codex windows at the same time, each logged into a different Anthropic account. Normally, the Codex app only supports one session per machine. - The need for this arises because Anthropic currently restricts each Codex instance to one account. Power users who manage multiple accounts (e.g., for work + personal use, or for testing) previously had to log out and back in to switch — or couldn't run multiple instances at all. - The broader context: as AI assistants become professional tools, users seek the same multi-account flexibility that browsers, Slack, or email clients have long offered. This is a third-party workaround, not an official Anthropic feature.

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