The unofficial wire for OpenAI Codex
About Codex Insider
Codex Insider is an independent publication covering the OpenAI Codex coding agent — releases, limits, models, errors, and incidents — written by people who use the tool daily, in plain English, with a source behind every claim.
Published
What does Codex Insider publish?
Three kinds of pages: a news wire covering OpenAI Codex releases, model drops, limit changes, and incidents; living reference pages for usage limits, models, releases, AGENTS.md, and stats, each re-verified and stamped with the date we last checked it; and an error encyclopedia with one page per exact Codex error string and the fix at the top.
The news wire
Dispatches on releases, model drops, limit changes, and incidents — published fast, dated, bylined, and linked to primary sources.
Living references
Hub pages that stay current as the product moves:usage limits, models,releases, AGENTS.md, andstats — each stamped with the date we last verified it.
The error encyclopedia
One page per exact Codex error string, with the fix at the top and the GitHub issue trail behind it.
Who writes Codex Insider?
Everything on this site publishes under the Codex Insider Desk byline. The founding masthead — the humans behind the desk, with names and bios — is coming in an announcement on the wire. We'd rather ship a real masthead a little late than pad this page with invented names, so until then the byline stays collective.
The desk runs on AI-assisted research with human editing and judgment on every page that ships. It covers the beats a daily Codex user actually needs — what changed, what it costs, what broke, and how to fix it — and links every claim to a primary source.
How does Codex Insider work?
Research and drafting are AI-assisted, and a human reviews and approves everything before it publishes. Every factual claim links to a primary source — a GitHub release, an issue thread, an official changelog entry, or a dated announcement — and reference pages carry visible verification dates so you can see when we last checked each fact.
AI-assisted research
AI tooling watches the release feed, changelogs, and issue trackers around the clock and writes the first draft. That's how a small desk keeps pace with a product that ships near-daily.
Human review
A human reads, edits, and approves every page before it goes out — nothing on this site is auto-posted.
Primary sources
Claims link to where they came from: a GitHub release, an issue thread, official docs, or a dated announcement. If we can't source it, we don't print it.
Verification dates
Reference pages show when each figure was last checked, because Codex moves fast enough that undated facts go stale in weeks.
The full rules — sourcing, corrections, AI disclosure, and sample-data labeling — live on the editorial policy page.
Independence
No OpenAI affiliation, no sponsored content, no affiliate links — this site sells nothing. The disclaimer below appears in the footer of every page:
Codex Insider is an independent publication and is not affiliated with, endorsed by, or sponsored by OpenAI. ‘Codex’ is a trademark of OpenAI referenced here for identification purposes only.
Contact
A direct contact address arrives with the founding masthead announcement. Until then, the full-text RSS feed is the way to follow everything we publish the moment it lands, and GitHub is where most of our reporting starts — the openai/codexreleases and issue threads we read daily. The Weekly Wire email edition is on its way too — details on the newsletter page.