Codex Model Discontinuation: Is Simply Reselecting on the Screen Enough? A Checklist for Reviewing Saved Settings, Scripts, and Scheduled Tasks

The research for this article was conducted as of October 15, 2026, at 17:00 (JST). The content is based on official guidance ...

Use your ChatGPT usage quota with external AIs! OpenAI announces "Sign in with ChatGPT," supporting OpenClaw, Devin, and more

At "DevDay 2026" held on September 29, 2026, OpenAI announced a new authentication and usage quota sharing system called ...
TechRepublic

OpenAI Brings ChatGPT, Work, and Codex to Linux in Desktop Preview

OpenAI’s ChatGPT desktop app reaches Linux in preview, combining ChatGPT, Work, and Codex for supported Ubuntu, Debian, and Fedora systems. OpenAI is bringing ChatGPT, Work, and Codex to supported ...

OpenAI to retire GPT-5.5 from ChatGPT, Work and Codex on October 14: What changes to expect

OpenAI is making a significant change to its model lineup, with GPT-5.5 set to leave some of its major products next month as users are moved towards newer models.
TechRepublic

ChatGPT Atlas Shuts Down Aug. 9: What Users Must Save Before Migrating

ChatGPT Atlas is scheduled to stop working Aug. 9, 2026. Users should export browser data, verify account access, and test replacement workflows before uninstalling it. The ChatGPT Atlas shutdown ...