… Codex was originally released as an open-source command-line tool last April, before the macOS-native desktop app landed in early February. Windows users had to wait a few more weeks for their own Codex version, but it’s finally here. So, what’s Codex? …
… GPT-5.4 is out now on ChatGPT where it goes by the name GPT-5.4 Thinking as well as on the OpenAI API and OpenAI's coding tool Codex a version of which just came out for Windows . …
… OpenAI said it nixed the Nerdy personality back in March, but not before GPT-5.5 had already been trained–hence the addition of the crude, strongly-worded ban on the goblins and gremlins in the Codex CLI system prompt. …
… News Analysis I love my new Codex AI pet — and now I want one in every app OpenAI’s Codex pets are perfect for keeping track of waiting AI agents. …