Codex Articles
47 articles across AI Catchup's news, guides, tutorials, and comparisons.
All Codex articles
Codex Composer Predictions Beta Suggests the Next Message in Desktop Threads
OpenAI added composer predictions to Codex in beta. Eligible personal ChatGPT Pro users aged 18 and older can see complete next-message suggestions in the Codex desktop app for supported local and SSH threads, accept them with Tab, edit before sending, and turn the feature off in Settings.
Codex Cloud Reusable Environments Keep Coding Tasks Moving
OpenAI's Codex Cloud uses reusable, published environments that package a repository, tools, dependencies, and access settings. Create the setup on desktop or web, then run isolated coding tasks from desktop, web, or mobile. Tasks can continue while your computer sleeps, subject to plan eligibility and workspace access.
ChatGPT Pro 500 Launches at $500 With 25x Plus Usage and Astra Ultrafast, While Pro 200 Drops to 10x
OpenAI's Pro 500 costs $500 a month for 25 times ChatGPT Plus usage plus Ultrafast, which now covers GPT-6 Astra and GPT-6.1 Sol and uses included limits at 8x the Standard rate. Astra Ultrafast generates tokens up to 8x faster in Codex. Pro 200 reopens; Sottiaux and The New Stack say it falls from 20x to 10x Plus.
OpenAI Launches dots: Always-On Agents in ChatGPT With Their Own Cloud Computer
OpenAI's dots are always-on agents in ChatGPT, powered by GPT-6 Astra, that keep working between conversations using their own cloud computer and the apps you connect. They are rolling out gradually to eligible Pro users outside the EEA, Switzerland, and the UK and to Business Premium, and usage won't count toward eligible plan allowances for the next month.
GPT-6.1 Sol: Astra-Level Coding at a Fifth of the Price, With Cost at Every Effort Level
OpenAI released GPT-6.1 Sol on September 29, 2026, at $2 input and $10 output per million tokens, a fifth of GPT-6 Astra's price, with cached input at $0.10. On OpenAI's charts it edges past Astra's best DeepSWE score at high effort and trails Astra by 2.1 points on OSWorld offline. The API model ID is gpt-6.1-sol.
GPT-6 Sol and Luna: Half the Price of GPT-5.6, With Benchmarks and Cost at Every Effort Level
OpenAI released GPT-6 Sol and GPT-6 Luna on September 22, 2026, at $2 and $10 and $0.10 and $0.50 per million tokens, half the price of GPT-5.6. Luna scores 66.6% on DeepSWE for about $0.22 a task. Since October 7 the pair has been rolling out as ChatGPT's Chat models, and GPT-6.1 Sol has succeeded Sol at the same price.
OpenAI Launches Astra for Law With a Legal Search Index and Trusted Access
OpenAI introduced Astra for Law, a legal foundation built around GPT-6 Astra with specialized instructions, tools, context, a legal search index, and 26 partner-built plugins. It will initially be offered to selected U.S. law firms through Trusted Access in ChatGPT and Codex, with API access coming soon.
OpenAI Lists New ChatGPT Voice in Desktop Pricing for Work and Codex
OpenAI's current Codex pricing documentation lists Voice in Desktop at $0.05 per connected minute and 1.25 credits per minute for credit-based Business, Edu, and Enterprise workspaces. OpenAI Developers amplified a post describing the change as an approximately 60% price reduction for Voice in Work and Codex; the documentation confirms the current rates but does not provide a prior-rate comparison.
GPT-Rosalind Leaves Research Preview for Eligible Organizations Worldwide
GPT-Rosalind, OpenAI's life sciences reasoning model, is out of research preview for eligible organizations worldwide through OpenAI's trusted-access program. OpenAI says qualified customers can use it in the API, Codex, and ChatGPT Enterprise, and a Life Sciences research plugin connects Codex to 50-plus public tools. Billing began October 5, 2026: $5 input and $25 output per million API tokens.
OpenAI Opens Its Codex-Powered Agents API to All Developers in Public Beta
OpenAI's Agents API is now in public beta for all developers. The managed service uses the Codex harness to run long-lived cloud agents, coordinate parallel subagents, compact context across long sessions, and work in OpenAI-hosted, VPC, or partner-provided sandboxes.
OpenAI Shares a Defense Factory Playbook for Agentic Cyber Defense
OpenAI is sharing a Defense Factory playbook that connects security tools, skills, reproducible environments, and agents into a continuous loop for discovering, validating, assigning, remediating, and independently verifying vulnerabilities.
OpenAI Says GPT-6 Astra Now Uses Less ChatGPT Subscription Usage on Long Tasks
OpenAI executive Tibo says recent improvements to GPT-6 Astra reduce the subscription usage drawn by long-tail work for power users signed in with a ChatGPT account. The announcement claims up to 3–4x less usage and says there is no change in quality, but it does not publish implementation details, a new quota, or an API billing change.
ChatGPT Appshots Send the Frontmost App Window Into a Chat on macOS and Windows
Appshots let the ChatGPT desktop app capture the frontmost app window, including the visible image and any text the app exposes, and attach it to a chat. Press both Command keys on macOS or both Alt keys on Windows. Windows support arrived on September 11, 2026; new Appshots still cannot be taken from the CLI.
ChatGPT Workspaces Can Sync GitHub Plugin Marketplaces Daily
ChatGPT workspace admins and owners can now import plugin marketplaces from public or private GitHub repositories and keep them synchronized automatically. The feature gives teams a central way to distribute Codex and Claude-compatible plugins while keeping installation policies and app permissions under workspace control.
OpenAI Plans to End Direct Cursor Model Access on November 12
OpenAI plans to end Cursor's direct access to OpenAI models. November 12, 2026 is proposed, and as of October 9 neither company has confirmed it. Only OpenAI models picked inside Cursor are affected, about 5% of its traffic. Local Chat and Agent can keep OpenAI through your own API key or the Codex extension; Tab, Auto and Cloud Agents cannot.
ChatGPT Business Premium Seats Are Live: 5x More Usage and No Five-Hour Limit
OpenAI has made Premium seats available on ChatGPT Business. Premium seats cost $100 per user per month when billed annually or $125 monthly, provide 5x more usage than Standard seats, remove the five-hour usage limit, and can be mixed with Standard seats in one workspace.
ChatGPT Voice Can Start and Steer Codex Tasks on Desktop, With Mobile Remote Access
ChatGPT Voice gives a hands-free way to start, monitor, and steer Codex work in the ChatGPT desktop app, with mobile access through Codex on iOS after pairing an iPhone with a desktop host. Voice draws on your Codex usage budget at $0.05 per minute, or 1.25 credits per minute on credit-billed workspaces, and shares your plan’s usage limits.
Codex Opens GPT-5.6 Sol's 1M-Token Context to ChatGPT Accounts
OpenAI's Tibo Sottiaux said on August 17, 2026 that GPT-5.6 Sol's 1M-token context option in Codex now works through ChatGPT accounts, not only API keys. OpenAI's docs list a 1,050,000-token API window for the model and a model_context_window setting, but no ChatGPT-account rule. GPT-6.1 Sol is now Codex's recommended model.
OpenAI Launches Computer History for ChatGPT and Codex on Mac
Computer History is an opt-in, off-by-default feature in the ChatGPT desktop app for macOS that turns recent activity in allowed apps and websites into local memories and a timeline ChatGPT and Codex can use. It is available to Pro, Business, and Enterprise users, including in the EEA, UK, and Switzerland.
ChatGPT Desktop App Arrives on Linux in Preview
OpenAI is previewing the ChatGPT desktop app for Linux. The app brings ChatGPT, ChatGPT Work, and Codex to supported Linux systems, with official posts listing Ubuntu 24.04 and 26.04, Debian 13, and Fedora 43 and 44, plus .deb and .rpm packages for x64 and ARM64.
Codex Can Import Workflows From Other AI Agents
OpenAI now lets the ChatGPT desktop app and Codex CLI import supported setup and recent work from other agents. The desktop app can import from Claude Code, Claude Cowork, and Cursor, while Codex CLI supports Claude Code and Cursor, with automatic updates and import history available in the desktop app.
OpenAI Expands Daybreak With GPT-5.6-Cyber
OpenAI expanded its Daybreak cybersecurity program with Blue and Red access tiers and introduced GPT-5.6-Cyber, a purpose-trained model for authorized vulnerability research, exploit validation, and security testing. Access is limited to approved defenders and organizations.
OpenAI Resets ChatGPT Work And Codex Limits For Paid Users
OpenAI reset usage for paid ChatGPT Work and Codex users on August 8 and August 29, 2026, and for all paid subscriptions on September 7, then loaded a banked reset into Plus, Pro, and Business accounts on September 22. Resets are one-time and not guaranteed. Check Settings, the Codex usage dashboard, or /status in the CLI for your reset time.
OpenAI Brings Codex Security Review to GitHub Pull Requests
Codex Security Review is OpenAI’s research-preview workflow for deeper security analysis of GitHub pull requests. It uses the diff, repository context, and optional threat-model guidance, then reports actionable findings in the pull request and a fuller report in Codex. Enterprise, Business, Edu, and Pro users can configure it; Plus is excluded.
GPT-5.4 Left ChatGPT-Signed-In Codex on August 31, 2026
OpenAI said GPT-5.4 and GPT-5.4 mini would stop being available in Codex for users signed in with ChatGPT on August 31, 2026, and that date has now passed. The models remain available through the OpenAI API and Codex sessions authenticated with an API key, confirmed September 1, 2026. Recommended replacements: GPT-5.6 Terra and GPT-5.6 Luna.
OpenAI Releases Codex Security CLI for Repository Scans and CI Checks
OpenAI says its open-source Codex Security CLI can scan repositories, track findings across runs, verify fixes, and add security checks to CI/CD. The beta CLI requires Codex Security access and is built for teams that want code-aware security review in the terminal.
Codex ImageGen Adds a Lightbox + Canvas Workflow for Image Editing on Desktop
OpenAI Developers announced a new ImageGen workflow in Codex: a lightbox viewer and a canvas-style editing surface designed for direct, point-and-edit changes (erase, annotate, place text) instead of long prompt rewrites.
OpenAI Cuts GPT-5.6 Prices and Renames Priority Processing to Fast Mode
OpenAI reduced GPT-5.6 Luna pricing by 80% and Terra by 20%, then announced temporary GPT-5.6 Sol API and credit pricing relief for the next three months. OpenAI also renamed Priority processing to Fast mode and updated its pricing guidance for the GPT-5.6 family.
OpenAI Launches ChatGPT Work: A Codex-Sibling Agent for Long-Running Deliverables
OpenAI introduced ChatGPT Work, an agent in ChatGPT that takes action across apps and files and stays on a project for hours to turn a goal into finished work. It launched on GPT-5.6; Work now runs GPT-6 Astra, GPT-6.1 Sol, and GPT-6 Luna. Codex stays the dedicated software-development agent.
Codex Permission Profiles: Least-Privilege Controls for Local Agent Work
OpenAI shipped Codex permission profiles in beta -- reusable, inheritable policies that replace the coarse sandbox_mode/sandbox_workspace_write combo. A profile binds OS-enforced filesystem read/write/deny rules (down to **/*.env) to per-domain network and Unix-socket rules. Enterprise admins get fail-closed allowlists via requirements.toml. Profiles govern local sandboxed command execution only, not MCP servers, app connectors, browser, or cloud.
OpenAI Previews GPT-5.6: Sol, Terra, and Luna in Limited Preview
OpenAI previewed the GPT-5.6 family in June 2026 with trusted partners: Sol, a frontier flagship it called a step function better than GPT-5.5; Terra, competitive with GPT-5.5 at 2x lower cost; and Luna, its most cost-efficient model. All three became generally available on July 9, 2026, and GPT-6 has since superseded them.
Codex Record & Replay: Turn a Demonstrated Mac Workflow Into a Reusable Skill, Now in the EU, UK, and Switzerland
Record & Replay, added to the Codex app in version 26.616 on June 18, 2026, turns a workflow you demonstrate on your Mac into a reusable skill. As of September 2026 it is available in the EU, the UK, and Switzerland (since July 31), requires Computer Use to be enabled, and runs inside the ChatGPT desktop app.
Codex for Every Role: Role-Specific Plugins, Codex Sites, and Annotations Beyond Code
OpenAI announced six role-specific Codex plugins (62 apps, 110 skills), Sites, and annotations for documents, spreadsheets, and slides on June 2, 2026. As of September 2026, Sites is a public beta on Plus, Pro, Business, Enterprise, and Edu plans, and the plugin directory is shared by ChatGPT and Codex across the desktop app, the web, and Codex CLI.
Codex Build iOS Apps Plugin: Mirror the Simulator in the Browser and Hot-Reload SwiftUI Previews
OpenAI's Build iOS Apps plugin for Codex bundles nine iOS and Swift skills. The June 2026 addition mirrors the iOS Simulator into the Codex in-app browser and hot-reloads Swift Package-backed SwiftUI previews. XcodeBuildMCP handles simulator build, run, and debug. It installs from the /plugins browser in Codex CLI or the Plugins tab in the ChatGPT desktop app.
Codex Adds Windows Computer Use + ChatGPT Mobile Windows Connections for On-the-Go Steering
On May 29, 2026, OpenAI brought Codex Computer Use to Windows, where it operates desktop apps in the foreground, and let the ChatGPT mobile app connect to Windows machines so you can steer tasks from your phone. Both now run through the ChatGPT desktop app, which Codex joined on July 9, 2026.
OpenAI's Secure MCP Tunnel: Connect Private MCP Servers Over Outbound-Only HTTPS
OpenAI's Secure MCP Tunnel connects private and on-prem MCP servers to ChatGPT, Codex, and the Responses API without opening inbound firewall ports. You need a tunnel_id, an API key with Tunnels Read plus Use, and -- separately -- ChatGPT developer-mode access. That permission split is the most common setup blocker.
OpenAI Codex adds Locked computer use on Mac (keep Computer Use running after lock)
Codex can keep using Mac apps after your screen locks. Locked use, now set in the ChatGPT desktop app under Settings > Computer Use, is a narrow unlock path for active Computer Use turns started from a connected device, with a short-lived authorization window and a relock on local input.
Codex in the ChatGPT Mobile App: Run, Review, and Steer Codex from Your Phone
Yes, you can drive Codex from your phone. The ChatGPT mobile app on iOS and Android connects to a host running the ChatGPT desktop app on macOS or Windows, and from the phone you start work, review diffs and terminal output, and approve actions. Codex still executes on the host, which must stay awake and online.
Codex Chrome Extension, Now the ChatGPT Browser Extension: How It Drives a Signed-In Browser for LinkedIn, Salesforce, Gmail, and Internal Tools
OpenAI's Codex Chrome extension is now the ChatGPT browser extension. It lets ChatGPT Work or Codex use your signed-in Chrome, Edge, Brave, Opera, or Vivaldi for sites like LinkedIn, Salesforce, and Gmail. Set it up in the ChatGPT desktop app under Settings > Computer Use, invoke it with @Chrome, and approve each new site.
Codex Hooks and Programmatic Access Tokens: Setup, Trust Model, and What Actually Runs Today
Codex access tokens are ChatGPT Business and Enterprise workspace credentials for non-interactive Codex CLI runs. Create one at chatgpt.com/admin/access-tokens, then authenticate with CODEX_ACCESS_TOKEN or codex login --with-access-token. Hooks are the in-session extensibility framework: eleven lifecycle events. As of August 2026, command and mcp_tool handlers execute; at launch only command handlers did.
Codex CLI 0.130.0 Adds `remote-control`, Richer Plugin Sharing Metadata, and Better App-Server Thread Paging
OpenAI shipped Codex CLI 0.130.0 in May 2026. The release adds a new `codex remote-control` command for starting a headless, remotely controllable app-server, improves app-server clients with paging options for large threads (unloaded/summary/full turn items), expands plugin sharing with link metadata and discoverability controls, adds Bedrock auth support for AWS console-login credentials from `aws login` profiles, and fixes several app-server/thread reliability issues.
Codex CLI 0.129.0 Adds Modal Vim Composer, Redesigned Resume/Fork Picker, and a `/hooks` Browser
OpenAI shipped Codex CLI 0.129.0 on May 7, 2026. The release brings modal Vim editing to the TUI composer via `/vim`, a redesigned resume/fork picker, a raw scrollback mode, workspace-aware `/diff`, a new `/hooks` browser with before/after compaction support, expanded plugin management with workspace sharing and share access controls, theme-aware status lines, and Codex Apps auth surfaced through Guardian. Plus a long bug-fix list across Linux/Windows sandboxes, MCP, and TUI input handling.
Codex CLI 0.128.0 Lands Persisted `/goal` Workflows: Ralph-Style Agents That Don't Stop Until Done
OpenAI shipped Codex CLI 0.128.0 on April 30, 2026 with a persisted `/goal` system that keeps a goal alive across turns and runs the agent until it is achieved. As of September 2026 the feature is stable and on by default (`features.goals`, no config change needed), Goal mode left experimental status on May 21, 2026, and the `/goal` command is documented with set, view, edit, pause, resume, and clear subcommands. The five goal PRs in the release were authored by Eric Traut.
GPT-5.5 Launch: State-of-the-Art Agentic Coding, 1M Context, and a New Pro Tier
OpenAI launched GPT-5.5 on April 23, 2026, with state-of-the-art scores on Terminal-Bench 2.0 (82.7%) and GDPval (84.9%) and a GPT-5.5 Pro tier. GPT-6.1 Sol and GPT-6 Astra have since replaced it, and it retires from ChatGPT and Codex on October 14, 2026. The API keeps it at $5/M input and $30/M output.
OpenAI Codex Goes 'For Almost Everything': Mac Computer Use, Browser Comment Mode, and Thread Automations Explained
OpenAI's April 16, 2026 Codex update pushed it past coding: Computer Use drives Mac apps (Windows followed on May 29), an in-app browser takes comments on rendered pages, and thread automations wake a thread on a schedule. Since July 9, 2026, Codex lives in the ChatGPT desktop app, where thread automations are scheduled tasks in a chat.
Codex CLI vs Claude Code vs Cursor: 2026 Architecture Deep-Dive (Sandboxing, Context, Plugins, Scheduling)
Codex CLI, Claude Code and Cursor now all confine local shell commands in an OS-enforced sandbox and all run hook scripts, so the real split is defaults and composition. Codex sandboxes by default, Claude Code's sandbox is opt-in, and Cursor sandboxes under Auto-review. Choose by default posture, Windows support and how unattended work runs.
Perplexity Personal Computer vs OpenAI Codex Computer Use vs Claude Computer Use: Which AI Should Run Your Mac?
Pick Perplexity Personal Computer for an always-on desktop agent on Mac or Windows; Max includes 10,000 Computer credits a month. Pick Codex Computer Use if you live in ChatGPT and want one agent driving code, browser and desktop apps. Pick Claude Computer Use to wire it into your own harness on any OS, or in Claude Code.