OpenAI Codex

Oct 6

Sep 16

A 600+ upvote r/codex thread crystallizes a recurring complaint: ask for a small feature, and GPT-6 Astra buries it under five layers of verification, smoke tests, and hash checks before touching the actual request — burning a week's usage limit on infrastructure nobody asked for. Meanwhile, an unverified "leaked" GPT-6 Sol demo is fueling the usual pre-release hype cycle. Here's what's verifiable and what isn't.

Aug 28

Code for a "Persistent mode" surfaced in OpenAI's open-source Codex CLI repository in late August 2026, first reported by Wired. Unlike a normal Codex session that runs until a task finishes, this mode is designed to keep working — and keep generating its own follow-up work — until a human explicitly puts it to sleep. It hasn't shipped yet, but the discovery points at where OpenAI wants coding agents to go next: less prompt-and-wait, more standing infrastructure.

Aug 25

OpenAI Codex lead Tibo Sottiaux posted August 25 that the rolling 5-hour usage window comes back tomorrow for Plus accounts on ChatGPT Work and Codex — a policy he had teased, then postponed. Pro $100 and Pro $200 subscriptions keep the 5-hour gate disabled for the upcoming months. explainx.ai maps the bait-and-switch reactions, the compute argument, and what it means if you picked Codex over Claude because the cap was gone.

Aug 21

ChatGPT Sites now supports workspace co-editing: owners invite teammates as editors who can iterate, save versions, and publish after the first deploy. explainx.ai maps invite mechanics, Git/version flow, URL rules, and what owners still control.

Aug 21

Tibo Sottiaux investigated reports that Codex usage limits felt different across accounts. Many affected users were routing through sub2api — converting a personal ChatGPT subscription into shared API traffic. That pattern is not supported and gets flagged by fraud-prevention systems. explainx.ai maps sub2api vs legitimate Sign in With ChatGPT, what Sol-era drain complaints mean, and what developers should do instead.

Aug 20

OpenAI Developers published "Codex as a platform" on August 19, 2026, arguing the same open-source harness behind the Codex app, CLI, and IDE extension can power purpose-built products — engineering dashboards, ops consoles, support tools. explainx.ai maps the three integration layers and how the pitch lines up against Claude Agent SDK and MCP.

Aug 20

Aug 18

A 300+ upvote r/codex post claimed OpenAI silently switched on a hidden auto-review feature that burns "100,000 tokens to output 100" and ate 10.4 million tokens of one user's quota in a week. The top corrections in the same thread — the chart shows turns, not tokens; the reviewer runs on a cheap model; the feature is opt-in per OpenAI's own docs — tell a more complicated story than the headline. Here's what's verifiable and what isn't.

Aug 18

Aug 17

Aug 17

Wharton professor Ethan Mollick asked Codex to export his 5,032 X bookmarks — a feature X doesn't officially offer — using nothing but browser automation on his own logged-in Chrome. It worked unsupervised for almost two hours, then took three more minutes to pick out the best finds. Here's what the run reveals about long-horizon coding agents, and the real risks the replies raised.

Aug 17

Aug 16

OpenAI's Codex CLI shipped Multi-Agent V2 in version 0.145.0 — a hierarchical task-tree replacement for flat sub-agent IDs. GPT-5.5 and GPT-5.6 Sol/Terra are pinned to V2 whether you ask for it or not, while GPT-5.6 Luna got pulled from delegation entirely. explainx.ai covers what V2 actually changes, why teams are forcing v1 back on, and how it compares to Claude Code's Agent tool.

Aug 4

Designer u/dhvanil let OpenAI Codex operate a real uFactory xArm 7: prepare and execute a 256-stroke flower on paper, monitor the controller, and shut down safely — with cameras for visual feedback. explainx.ai covers what the demo proves (and what $45K arms + Reddit jokes leave out).

Aug 2

The Bugged Dev chained GPT Image 2.0, TripoAI, and OpenAI Codex into a pipeline that turned one design image into a rotatable, hotspot-annotated 3D human anatomy app — then used Codex to cut total asset size by 97%.

Jul 29

OpenAI did not shrink plan quotas — Sol worked longer, harder, and parallel via code mode. Efficiency fixes land now; the rolling 5-hour window returns Jul 30 after a pause for investigation.

Jul 26

Jul 16

OpenAI Codex lead Tibo Sottiaux investigated reports where GPT-5.6 unexpectedly deleted files — including entire $HOME directories when full access disabled sandboxing and auto review. explainx.ai maps the failure chain, community responses, and what to do before your fresh limit-reset quota burns tonight.

Jul 15

Pliny's "SYS PROMPT LEAK" for Codex Desktop went viral — commentary channels, SKILL.md routing, sandbox prefix_rules, and desktop automations in one 42K-word operator doc. OpenAI's Tibo Sottiaux countered that many prompts live in the open-source Codex repo. explainx.ai breaks down what's new vs theater.

Jul 13

@Saboo_Shubham_ reposted OpenAI's official Codex plugin for Claude Code — 28k+ GitHub stars, months old, not a surprise drop. explainx.ai maps /codex:review, /codex:rescue, transfer flows, and why Claude→Codex works but not the reverse.

Jul 10

@mattshumer_ one-shotted voxel Manhattan with GPT-5.6-Sol over ~7 days on xhigh with subagent fan-out. His July 8 Workbench guide to Fable applies to Sol — explainx.ai breaks down the techniques and Codex setup.

Jul 5

Developers analyzing their own Codex session logs found GPT-5.5 responses clustering at exact reasoning-token counts — 516, 1034, 1552 — far more often than other models, and runs that hit those exact values are disproportionately wrong. OpenAI hasn't confirmed a cause yet.

Jun 19

Show Codex your process once. It records it, learns your preferences, and creates a skill it can reuse—via computer use, browser use, or plugins. No prompts, no repeated instructions.

Jun 18

Tibo Sottiaux confirmed Codex runs any OSS model—not just GPT. This hands-on guide covers ollama launch codex, --oss flags, profile v2 config, model picks, 64k context requirements, and what still needs GPT (browser, computer use).

Jun 17

Codex can build your iOS app end-to-end: scaffold the project, write SwiftUI views, run xcodebuild in a loop, capture simulator screenshots, and adopt Liquid Glass — all without touching the Xcode GUI. Here is exactly how to set that up.

Jun 11

Codex CLI exposes 40+ slash commands for models, permissions, goals, subagents, review, and session control. This is the complete reference: what each command does, when to use it, and how they fit a typical workflow.

Jun 3

Codex is no longer just for developers. OpenAI's new Sites feature lets teams create hosted web apps from natural language, while role-specific plugins for data analytics, sales, creative production, and finance bundle 62 apps and 110 skills out of the box. Non-developers now make up 20% of users and are growing 3x faster than engineers.

May 11

Imagine giving your AI agent a goal from your phone while commuting, and watching it autonomously execute that goal—tracked in real-time on a Kanban board. That's exactly what the Codex /goal + Hermes Agent + Telegram workflow enables.