If you keep bookmarks to Codex’s developer docs, they don’t point where they used to. On July 9 we fetched developers.openai.com/codex/changelog directly and got back an HTTP 308 Permanent Redirect to learn.chatgpt.com/docs/changelog. The models and pricing paths behave the same way — developers.openai.com/codex/models and /codex/pricing both land on the matching learn.chatgpt.com/docs/ pages. The destination hub carries the page title “ChatGPT Learn.”
Where do the official Codex docs live now?
They live on learn.chatgpt.com. We verified the redirects first-hand on July 9, 2026: the changelog, models, and pricing URLs under developers.openai.com/codex all returned 308 responses pointing at the corresponding learn.chatgpt.com/docs paths. Old links still resolve — they pass through a redirect and land on ChatGPT’s domain. If you cite, scrape, or monitor Codex docs, the learn.chatgpt.com URLs are now the canonical ones.
Why a 308 matters for your tooling
A 308 is the strongest redirect HTTP has: permanent, method-preserving, and cacheable indefinitely by browsers and clients. In practice that means OpenAI is telling the web this move is not temporary. Anything that hardcodes the old endpoints inherits the consequences — tutorials and awesome-lists full of developers.openai.com links, changelog trackers polling the old URL, scripts that assume the docs host, and every bookmark bar in between. The redirects keep things working for now, but the clean fix is to update the URLs at the source.
Is OpenAI renaming Codex?
OpenAI has announced nothing about a rename. Everything in this story is observation, not roadmap. What we can verify: the docs now resolve on ChatGPT’s domain (checked July 9), and the official changelog shows the standalone Codex desktop app merged into the ChatGPT desktop app that same day — coverage of that merge is here.
There’s a repositioning pattern around the edges too. OpenAI’s June 2 announcement was literally titled “Codex for knowledge work”, and it reported — self-reported, worth stressing — that about 20 percent of Codex’s 5 million-plus weekly users are not developers, a segment OpenAI says is growing three times faster than the developer base. We covered those numbers in our stats dispatch.
Add it up and the direction is visible even without an announcement: docs on ChatGPT’s domain, the desktop app inside ChatGPT, and OpenAI marketing Codex for general work rather than just code. Whether that ends in a rename is OpenAI’s call to make and announce — until then, point your links at learn.chatgpt.com and treat developers.openai.com/codex as legacy. We’ll update this story if OpenAI says anything official about the docs move or the name.