Introducing GPT-5.5 A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry more tasks through to completion. It marks a new way of getting computer work done. Now available in ChatGPT and Codex.↗

Last week, we released a preview of memories in Codex. Today, we’re expanding the experiment with Chronicle, which improves memories using recent screen context. Now, Codex can help with what you’ve been working on without you restating context.↗

Codex <---> Claude Code comms with cmux New way of working is letting Codex and Claude communicate between themselves while I co-ordinate as needed. If you already have cmux installed this is a no-brainer. Send this prompt: "Please run "cmux -h", identify your surface ID and o…↗

@bentossell @kr0der Just ask codex to check in every X minutes/hours/days. I use it a lot when waiting on answers from 5.4 Pro via API to return. We call them "Thread Automations" developers.openai.com/codex/app/auto…↗

might finally be time to get a Mac Mini and leave Codex open 24/7 now that we’ve got Computer Use + Openclaw heartbeats + Automations↗

@kr0der oc heartbeats - whats the equivalent in codex? or just an automation across a heartbeat.md ?↗

@nicdunz You can have multiple Computer Use's happening at once in a _single_ chat. Just tell Codex to use N Subagents concurrently that use Computer Use to do XYZ thing.↗

5 steps to making codex your chief of staff 1. download the desktop app 2. install the plugins you need for work 3. paste this into a thread and pin it 4. ??? 5. monitor the situation gist.github.com/jxnl/e96b08aae…↗

Codex for (almost) everything. It can now use apps on your Mac, connect to more of your tools, create images, learn from previous actions, remember how you like to work, and take on ongoing and repeatable tasks.↗

OpenAI is working on a new experimental feature for Codex called Scratchpad. Users will be able to start multiple Codex chats from a TODO list view, which will be executed in parallel. It will become very instrumental in the upcoming Codex Superapp, where you will be able to…↗

Cursor's debug mode is great. But I wish i had it in Claude Code / Codex. Introducing debug agent skill: - /debug-agent [your bug] - writes logs and actually repros the bug - fixes the root cause↗

the Shopify AI Toolkit is here manage your store with your favorite agent Claude Code, Codex, Cursor, VS Code, and more↗

We’re updating our ChatGPT Pro and Plus subscriptions to better support the growing use of Codex. We’re introducing a new $100/month Pro tier. This new tier offers 5x more Codex usage than Plus and is best for longer, high-effort Codex sessions. In ChatGPT, this new Pro tier s…↗

Announcing Builder 2.0 We raised $67M to build collaborative coding for Claude and Codex - Start tasks from a local branch, Slack or Jira - Real-time collab between humans and agents - 100s of parallel agents code, test, review Reply "Builder" and I'll DM you 500 agent credits↗

Really loved this conversation with @ashebytes. Ashe is one of the most original and creative builders in the community. We talked about building in public, relational intelligence, second brains, and how you can just build things with Codex. Full episode out later this week!↗

Built pi-read-mode to get rid of one of my most annoying tui pains. When the agent outputs a long plan/output and I want to read through it while typing out my questions, the TUI keeps jumping down and I need to scroll back up each time. Like/share if you want claude/codex to…↗

NEWS: OpenAI just announced that it has officially closed their latest funding round with $122 billion in committed capital at a post money valuation of $852 billion. "We are now generating $2B in revenue per month. At this stage, we are growing revenue four times faster than th…↗

I built a new plugin! You can now trigger Codex from Claude Code! Use the Codex plugin for Claude Code to delegate tasks to Codex or have Codex review your changes using your ChatGPT subscription. Start by installing the plugin: github.com/openai/codex-p…↗

Introducing Litter beta - Codex (and soon, others) for Android (and iOS) Always free and open-source Litter runs codex natively on the device and you can also use it as a remote, without the need to install anything on your remote computer. It connects over ssh and starts a c…↗

Introducing Remodex ✨ The first Codex Remote Control for iOS! Codex runs on your Mac. Your iPhone controls it, from wherever you are. Pair with one QR scan: → Create threads → Use subagents & skills → E2EE → Git actions and more Open source. Live now on the AppStore!↗

We're rolling out plugins in Codex. Codex now works seamlessly out of the box with the most important tools builders already use, like @SlackHQ, @Figma, @NotionHQ, @gmail, and more. developers.openai.com/codex/plugins↗

Introducing Expect Let agents test your code in a real browser 1. Run Claude Code / Codex to QA your app 2. Watch a video of every bug found 3. Fix and repeat until passing Run as a CLI or agent skill. Fully open source↗

We’re launching Codex for Open Source to support the contributors who keep open-source software running. Maintainers can use Codex to review code, understand large codebases, and strengthen security coverage without taking on even more invisible work. …↗

For the GPT-5.4 launch, we overhauled our computer use demo to give folks the ability to try out the new features across different use cases. You can test drive a kanban board, hotel booking site, or paint app. Or clone the repo and add your own! Built with Codex™↗

I implemented a @mastra observational memory into @badlogicgames pi Check it out: mastra.ai/blog/observati… - the blog post Extension: npmjs.com/package/pi-ext… Built with pi and 5.3 Codex xhigh↗

PSA, codex has a new websocket mode for spark, you can enable that for other models too via responses_websockets_v2 = true↗

i too found it very effective to give agents a "napkin" to write on as it works. it's a meaningfully different form of context than session history (lossy), or todos/plans (static) anyway, install this skill to give codex/claude a napkin to write on github.com/blader/napkin↗

A few notes on the new Codex macOS Electron app - I've had a few days of preview access. I had fun poking around in the SQLite database it uses for scheduled Automations! simonwillison.net/2026/Feb/2/int…↗

I am Tibo and I have an incredible team. Codex would not exist without them and they cooked. Enjoy the new Codex app, access through your free/go ChatGPT plan and 2X rate limits on other plans. Can't wait to hear what you do with it. openai.com/codex/↗

This is my new favorite way to work with Clawdbot. 1. Tell it we're working on some app improvements, it should just take notes for now. 2. Open my app, run through user flows, send Clawd screenshots with notes as I find issues / improvements 3. It builds a list of work as…↗