Image created with gemini-3.1-flash-image-preview with claude-sonnet-4-5. Image prompt: Flat cartoon illustration of a cute coral-red lobster mascot with a white speech bubble saying ‘OpenAI’ standing next to a simplified white rounded rectangle showing the ChatGPT interface with green OpenAI logo, dark charcoal background, minimal design, kawaii mascot style, clean geometric shapes, subtle green accent glow, web interface aesthetic, landscape format.
ChatGPT now has full support for MCP Apps. We worked with the MCP committee to create the MCP Apps spec based on the ChatGPT Apps SDK. Now, any apps that adhere to the spec will also work in ChatGPT.”” https://x.com/OpenAIDevs/status/2019185727934984384
I still see the argument that AI is bad af generating ideas, but my colleagues and I, along with many other researchers, have repeatedly found that even the old GPT-4 could be prompted to generate more diverse and higher quality ideas than most people. And newer models do better.”” https://x.com/emollick/status/2018388869515784595
An easy way to connect Gemini CLI, Claude Code, Codex CLI or OpenClaw to Apps and UIs? The Agent Client Protocol is an open standard unifying AI agent-to-editor communication. – Uses standard JSON-RPC 2.0 protocol for reliable communication. – Connects via stdio for subprocesses”” https://x.com/_philschmid/status/2018706591776756216
Codex | AI Coding Partner from OpenAI | OpenAI https://openai.com/codex/
Codex is now over 1 million active users!”” https://x.com/sama/status/2019219967250669741
Codex now pretty much builds itself, with the help and supervision of a great team. The bottleneck has shifted to being how fast we can help and supervise the outcome.”” https://x.com/thsottiaux/status/2018258151603388639
Excited to announce the Codex App: run multiple projects and threads in one focused app! 🔥 The app natively packs a lot of features making it easier to maximise your productivity: > Worktree mode keeps changes isolated – parallel tasks without touching your checkout >”” https://x.com/reach_vb/status/2018385536616956209
GPT-5.2 and GPT-5.2-Codex are now 40% faster. We have optimized our inference stack for all API customers. Same model. Same weights. Lower latency.”” https://x.com/OpenAIDevs/status/2018838297221726482
GPT-5.3-codex early review: this thing runs auto compaction like a maniac. it doesn’t wait for context to fill up and instead starts garbage collecting tokens the second it decides they’re dead weight. also it gives you updates every few steps like “”hey here’s what I am”” https://x.com/cto_junior/status/2019607817884475718
Introducing GPT-5.3-Codex | OpenAI https://openai.com/index/introducing-gpt-5-3-codex/
Introducing OpenAI Frontier | OpenAI https://openai.com/index/introducing-openai-frontier/
Introducing the Codex app | OpenAI https://openai.com/index/introducing-the-codex-app/
Is Codex actually ahead of Claude Code now??? I tried Codex yesterday while doing some training optimizations on Andrej’s nanochat. It has worse UI, ran my code in a CPU-only sandbox despite I have GPUs. It feels less agentic than Claude Code for sure. Sonnet 5, I’m still”” https://x.com/Yuchenj_UW/status/2019146114147185005
More than 200k people downloaded the Codex app in the first day. And they seem to love it. CODEX FTW!”” https://x.com/sama/status/2018734731437985930
most important update after the app – Codex now has a dedicated Plan mode! 🔥 It senses what questions to ask and searches for possible answers to them too – works well in both wide as well narrow domain problems you can try it directly by /plan in the app as well as the CLI”” https://x.com/reach_vb/status/2018456051792982339
My first-day impressions on Codex 5.3 vs Opus 4.6: Goal: can they actually do the job of an AI engineer/researcher? TLDR: – Yes, they (surprisingly) can. – Opus 4.6 > Codex-5.3-xhigh for this task – both are a big jump over last gen Task: Optimize @karpathy’s nanochat “GPT-2″” https://x.com/Yuchenj_UW/status/2019824445792424385
Sam Altman On OpenAI’s Game-Changing New Device And His Longtime Feud With Elon Musk https://www.forbes.com/sites/richardnieva/2026/02/03/sam-altman-explains-the-future/
the codex app is really good, try it out. i’ve been a die-hard terminal / emacs user for many years, but since using the codex app, going back to the terminal has felt like going back in time. feels like an agent-native interface for building.”” https://x.com/gdb/status/2018387844222578818
To celebrate the launch of the Codex app, we doubled all rate limits for paid plans for 2 months! And added access for free/go.”” https://x.com/sama/status/2018437537103269909
Today, we’re introducing the Codex app, our flagship Codex experience. Work on multiple things in parallel, extend Codex with skills, and automate repetitive tasks. The most exciting part for us has been using the app to build itself. This is the first of many new things coming”” https://x.com/ajambrosino/status/2018385459936923656
We’re excited to launch the Codex app, a command center for building with agents. It gives you a focused space to manage multiple agents at once, run work in parallel, and collaborate with agents over long-running tasks. https://x.com/OpenAIDevs/status/2018385663457116379
What’s the general vibe on Codex 5.3 vs Opus 4.6? Personally, they seem like clear upgrades on their previous versions – with exactly the same strengths and blindspots. Codex remains amazing at tasks requiring attention to detail (data cleaning, micro-optimizations). Opus is”” https://x.com/rishdotblog/status/2019664800910135499
It’s so exponential, it literally looks like a wall. GPT-5.2 high sets new record in task duration. And it’s not even xhigh”” https://x.com/kimmonismus/status/2019174066565849193?s=46
We estimate that GPT-5.2 with `high` (not `xhigh`) reasoning effort has a 50%-time-horizon of around 6.6 hrs (95% CI of 3 hr 20 min to 17 hr 30 min) on our expanded suite of software tasks. This is the highest estimate for a time horizon measurement we have reported to date.”” https://x.com/METR_Evals/status/2019169900317798857
Ads in ChatGPT: Why behavior matters more than targeting https://searchengineland.com/ads-in-chatgpt-why-behavior-matters-more-than-targeting-468144
OpenAI quietly lays groundwork for ads in ChatGPT https://searchengineland.com/openai-quietly-lays-groundwork-for-ads-in-chatgpt-468162
Our Abilene Stargate data center is driving local economic value, for the city and its residents:”” https://x.com/gdb/status/2018374301465096589
I am extremely excited to welcome @dylanscandinaro to OpenAI as our Head of Preparedness. Things are about to move quite fast and we will be working with extremely powerful models soon. This will require commensurate safeguards to ensure we can continue to deliver tremendous”” https://x.com/sama/status/2018813527780463027
I am extremely excited to welcome Dylan Scandinaro to OpenAI as our Head of Preparedness. Things are about to move quite fast and we will be working with extremely powerful models soon. This will require commensurate safeguards to ensure we can continue to deliver tremendous”” https://x.com/sama/status/2018800541716107477?s=20
Nvidia CEO Huang denies he’s unhappy with OpenAI, says huge investment planned https://www.cnbc.com/2026/01/31/nvidia-ceo-huang-denies-hes-unhappy-with-openai.html
Concerning!”” https://x.com/sama/status/2018809497603743824
Really excited to get Elon under oath in a few months, Christmas in April!”” https://x.com/sama/status/2018812624910291186
dominik kundel on X: “Been helping bringing the Codex app to life and at this point I’ve fully moved from using an IDE and the Codex Extension to working 99.9% of the time exclusively in the Codex app. Here are some tips of what I found useful to get the most out of the app 👇” / X
https://x.com/dkundel/status/2018455598267027894
OpenAI poached its new safety executive from Anthropic. | The Verge https://www.theverge.com/ai-artificial-intelligence/873420/openai-poached-its-new-safety-executive-from-anthropic
FULL INTERVIEW: Sam Altman Responds to Anthropic’s Attack Ads, Live on TBPN – YouTube https://www.youtube.com/watch?v=KUNSNmr-1Bo&t=1026s
GPT-5.2 Pro and Thinking spot the issue in Anthropic’s analysis skill, Opus 4.5 and Gemini 3 Pro do not (Its a not huge issue, but interesting) (The 5.2 models have the strongest statical reasoning in my experience & 5.2 Pro is best if you want pedantic, correct second opinions)”” https://x.com/emollick/status/2019074065491726500
First, the good part of the Anthropic ads: they are funny, and I laughed. But I wonder why Anthropic would go for something so clearly dishonest. Our most important principle for ads says that we won’t do exactly this; we would obviously never run ads in the way Anthropic”” https://x.com/sama/status/2019139174339928189
can someone explain to me in simple words why the CEO of the highest valued company in the world is having a conference in the middle of a one way street during rush hour”” https://x.com/yacinelearning/status/2018689145086898466
it is true, but just wait a little longer…”” https://x.com/sama/status/2019139765015310773
Quite a visual from OpenAI. Your system of record is a dumb pipe and we will layer 5 rows of value on top of it to steal the relationship and all the economics along with it No wonder SaaS is in the gutter”” https://x.com/buccocapital/status/2019598551228223526
Retiring GPT-4o, GPT-4.1, GPT-4.1 mini, and OpenAI o4-mini in ChatGPT | OpenAI https://openai.com/index/retiring-gpt-4o-and-older-models/
[AINews] OpenAI Codex App: death of the VSCode fork, multitasking worktrees, Skills Automations https://www.latent.space/p/ainews-openai-codex-app-death-of
@Yuchenj_UW @tunguz @thsottiaux @sama that’s odd – do you have a repro? codex works w/ GPU processes quite well!”” https://x.com/reach_vb/status/2019164125893632020
⚙️ Inside the Codex harness All Codex surfaces, including the Codex app, the Codex CLI, the Codex web app, and IDE integrations — like @Code, Xcode, and @JetBrains — are powered by the same Codex harness under the hood. We’re sharing details on the Codex App Server, a JSON-RPC”” https://x.com/OpenAIDevs/status/2019221475849564657
📣 Open call to agent builders: Let’s read agent skills from `.agents/skills`, so people don’t have to manage separate folders per agent. Today we pulled the trigger for Codex to read `.agents/skills`. Goal is to deprecate `.codex/skills`. Pls like/tag/RT for momentum.”” https://x.com/embirico/status/2018415923930206718
🙌 You can now use @claudeai and @OpenAI’s Codex in GitHub and @code with your GitHub Copilot Pro+ or Copilot Enterprise subscription. Define your intent, pick an agent, and they’ll get to work clearing backlogs and bottlenecks, all within your existing workflow.”” https://x.com/github/status/2019093909981257849
Codex app is out for mac! I am surprised by how much I love it; it is a bigger step forward than I imagined. Lots more to come.”” https://x.com/sama/status/2018414858015039504
Codex is now available in Xcode 26.3 Work through complex tasks with more autonomy by breaking down tasks, searching Apple docs, exploring file structures, updating settings, and capturing Previews as you iterate Available in the Xcode 26.3 release candidate”” https://x.com/OpenAIDevs/status/2018796432443244897
configure your codex personality, in the codex app:”” https://x.com/gdb/status/2018743966133526959
Developer choice is what fuels GitHub. IDEs, models, and now agents. @claudeai Code and @OpenAI’s Codex are now available in Copilot Pro+ and Enterprise, orchestrated through Agent HQ in one workflow with one subscription. ✨”” https://x.com/kdaigle/status/2019101467119087905
Enabled fp8 training for +4.3% improvement to “”time to GPT-2″”, down to 2.91 hours now. Also worth noting that if you use 8XH100 spot instance prices, this GPT-2 repro really only costs ~$20. So this is exciting – GPT-2 (7 years ago): too dangerous to release. GPT-2 (today): new”” https://x.com/karpathy/status/2018804068874064198
Fine-tuning open LLM judges to outperform GPT-5.2 https://www.together.ai/blog/fine-tuning-open-llm-judges-to-outperform-gpt-5-2
Good to see the industry finally standardizing. Products that moved to `.agents/skills` so far: – Codex – OpenCode – Copilot – Cursor – Not Claude Code”” https://x.com/theo/status/2018819504252608710
How would you prefer us to charge for Codex?”” https://x.com/sama/status/2019814741129195576
I am very excited about AI, but to go off-script for a minute: I built an app with Codex last week. It was very fun. Then I started asking it for ideas for new features and at least a couple of them were better than I was thinking of. I felt a little useless and it was sad.”” https://x.com/sama/status/2018444309750862333
I have been using the Codex app for the past couple of weeks. This has become THE way for me to code inside large and complex repositories. We were able to ship so many features in MagicPath because of it. It completely replaced my Cursor usage and Claude Code.”” https://x.com/skirano/status/2018398337938960715
i love how the entire timeline of good coders have already switched to codex and have been posting about codex for two weeks now while all the normies are still claude posting 💀😂 yall mfs two weeks behind wake up”” https://x.com/yacineMTB/status/2018873004277842139
nanochat can now train GPT-2 grade LLM for <<$100 (~$73, 3 hours on a single 8XH100 node). GPT-2 is just my favorite LLM because it’s the first time the LLM stack comes together in a recognizably modern form. So it has become a bit of a weird & lasting obsession of mine to train”” https://x.com/karpathy/status/2017703360393318587
OpenAI partners with Cerebras | OpenAI https://openai.com/index/cerebras-partnership/
The 5.3 lovefest is so nice to see. Don’t think we’ve had so much excitement for a model since the original GPT-4.”” https://x.com/sama/status/2019813802049696064
The many eulogies for AI capability growth after the release of GPT-5 seem especially short-sighted right now. Letting people nervous about AI feel they can safely ignore AI development because it was pure hype that would never have any real impact is not a good thing for anyone”” https://x.com/emollick/status/2018141446683930811
There have been over 500K Codex app downloads since Monday. You can just build things, a thread 🧵”” https://x.com/OpenAI/status/2019173348132188330
There is no GPT-5.3-Codex API. So no benchmarking. No it’s not rushed. It’s strategy imo They want to push their Codex usage up.”” https://x.com/scaling01/status/2019856879858450742
This is incredibly useful. I’ve had access for a while and I now regularly use Copilot, Codex, and Claude directly from GitHub to carry out complex agentic task with the best model and agent for the occasion. A lot of the public discourse in AI coding focuses on interactive”” https://x.com/intellectronica/status/2019100550164299817
TIL you can copy-paste ChatGPT answers with full markdown in the app! Just long-press the copy button and boom, clean formatting included ✨”” https://x.com/fdaudens/status/2017707156418465911
tldr: don’t read into the number at all rn! we don’t either. it’s supposed to calculate (avg wall-clock time per task (min)) * (total number of tasks), but a bug caused it to incorrectly include the time when a run is queued but hasn’t started yet. when running the gpt-5.2″” https://x.com/vvvincent_c/status/2019225157928382496
What’s new in the Codex app 🔀 Built-in worktrees Enable multiple agents to work without conflicts • Use isolated worktrees in same repository • Review clean diffs and provide inline feedback 📋 Plan mode Type /plan to go back and forth with Codex • Create thorough plans”” https://x.com/OpenAIDevs/status/2018385865207419124
Yes, I’ve had the same issue with GPUs and Codex.”” https://x.com/tunguz/status/2019152248752992753
You told us you’re running multiple AI agents and wanted a better UX. We listened and shipped it! Here’s what’s new in the latest @code release: 🗂️ Unified agent sessions workspace for local, background, and cloud agents 💻 Claude and Codex support for local and cloud agents”” https://x.com/code/status/2019120117884309718
Snowflake + OpenAI to help 12k+ enterprises deploy AI agents”” https://x.com/fidjissimo/status/2018424092987412680
Snowflake 🤝 @OpenAI We’re launching a $200M, multi-year partnership that brings co-innovation, joint go-to-market strategies, and OpenAI models natively into Snowflake Cortex AI — to help enterprises easily deploy agentic AI across their businesses. With first-party”” https://x.com/Snowflake/status/2018324380862783882
Snowflake and OpenAI partner to bring frontier intelligence to enterprise data | OpenAI https://openai.com/index/snowflake-partnership/
Why is OpenAI so stingy with ChatGPT web search? | justin․searls․co https://justin.searls.co/shots/2026-02-01-11h13m37s/
OpenAI Town Hall with Sam Altman – YouTube https://www.youtube.com/watch?v=Wpxv-8nG8ec&t=1179s
We love working with NVIDIA and they make the best AI chips in the world. We hope to be a gigantic customer for a very long time. I don’t get where all this insanity is coming from.”” https://x.com/sama/status/2018451015272694248
🌐🚨Search Arena Leaderboard Update! Four frontier models have landed on the Search leaderboard, and the Top 15 have been disrupted: ▪️#1 gemini-3-flash-grounding by @GoogleDeepmind (+6pts over gemini-3-pro-grounding) ▪️#5 gpt-5.2-search-non-reasoning by @OpenAI (only”” https://x.com/arena/status/2018760874178342975
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