@OpenAIDevs
Official updates for developers building with Codex & the OpenAI Platform • Service status: https://t.co/kZwnwdYYEq
Submissions are open for OpenAI Build Week. openai.com/build-week/ x.com/i/broadcasts/1…
Submit by July 21: openai.devpost.com
OpenAI Build Week starts Monday — and we’re hosting two livestreams to help you build. First up: Join us on July 13 at 10am PT to get the hackathon overview, see Codex and GPT-5.6 in action, and choose what you’ll build. x.com/i/broadcasts/1…
Next up: Build Week: From idea to execution 📆 July 14 at 11am PT We’ll dig into practical Codex and GPT-5.6 workflows, offer live support, and look at what builders are making around the world.
GPT‑5.6 took on a complex coding task spanning nearly 1,000 lines for Ankit Aich at @SnorkelAI, handling the work from start to finish without repeated prompting or hand-holding.
The AMA starts soon. Drop your questions about GPT‑5.6, Codex in ChatGPT, Sites, computer use, and what we should build next👇 reddit.com/r/codex/commen… x.com/OpenAIDevs/sta…
GPT-5.6 is here. Codex is now available inside ChatGPT. And we know developers will have questions. So we’re bringing the Codex team to r/Codex for an AMA. We’ll answer questions on Friday, 7/10 from 9:30am to 10:30am PT: reddit.com/r/codex/s/EsB8…
Turn an idea into a live Site you can publish and share Here’s what some of the team at OpenAI built with Sites 👇 @prd_008 used Sites to turn an idea into a personal focus app: x.com/prd_008/status…
Events list became a city guide that @danizeres organized by neighborhood, mood, and price: x.com/danizeres/stat…
Turn an idea into a live Site you can publish and share Here’s what some of the team at OpenAI built with Sites 👇 @prd_008 used Sites to turn an idea into a personal focus app: x.com/215271551/stat…
A PTO handoff became a private coverage hub that @danizeres organized around project status, backup owners, risks, and escalation paths: x.com/3413862778/sta…
OpenAI Build Week is here. The challenge starts July 13. Across the week, join live sessions and community events with builders around the world. Registration is open. Bring the idea sitting in your backlog. Build it with Codex.
GPT‑5.6 is helping @vercel’s internal data science agent tackle harder work @andrewqu, Vercel’s Chief of Software, used GPT-5.6 and Codex to unblock an internal data science agent on work where earlier models got stuck.
Build with GPT-5.6: openai.com/index/gpt-5-6/
GPT-5.6 comes in three model tiers. → Sol handles long-horizon coding and agentic work that demands planning, tool use, and follow-through. → Terra balances performance and cost for everyday work. → Luna brings speed to well-defined, high-volume work. Across knowledge-work evaluations, GPT-5.6 Terra surpasses GPT-5.5 at lower cost, while GPT-5.6 Luna nearly matches GPT-5.5’s peak performance at well under half the estimated API cost. t.co/XLGYkgiOlE
From spoken spec to working service. Sam Kronick, an engineer on @tryramp’s Applied AI team, used GPT-5.6 to build an entire service end-to-end from a natural-language spec.
Build with GPT-5.6: openai.com/index/gpt-5-6/
We’re bringing Codex and ChatGPT together in one desktop app. The same powerful coding agent, now alongside ChatGPT Work, with new coding workflows, a new Chrome extension, revamped in-app browser, and faster Computer Use powered by GPT-5.6. x.com/OpenAI/status/…
If you use the Codex app today, update it as usual. It will become the new ChatGPT desktop app, where Codex has its own dedicated space. Here’s what’s new for developers:
GPT-5.6 is rolling out in the API. Sol is our flagship model, leading in coding, knowledge work, cybersecurity, and science. Terra delivers performance competitive with GPT-5.5 at lower cost. Luna is our fastest, most affordable model for high-volume tasks.
GPT-5.6 is built for greater token efficiency. On the Artificial Analysis Coding Agent Index, Sol with max reasoning sets a new high of 80 while using 54% fewer output tokens and completing tasks in 57% less time than the next-highest-scoring model. Across knowledge-work evaluations, Terra surpasses GPT-5.5 at lower cost, while Luna nearly matches GPT-5.5’s peak performance at well under half the estimated API cost.
We're bringing GPT-Live-1 and GPT-Live-1 mini to the API soon. Developers and enterprises can sign up to be notified using this form: openai.com/form/gpt-live-… x.com/OpenAI/status/…
We're bringing GPT-Live and GPT-Live mini to the API soon. x.com/OpenAI/status/…
Developers and enterprises can sign up to be notified using this form: openai.com/form/gpt-live-…
GPT-Realtime-2.1-mini is now available in the API, bringing reasoning and tool use to our Realtime mini lineup at the same cost as GPT-Realtime-mini.
We’ve reduced p95 latency by at least 25% across Realtime voice models through improved caching. developers.openai.com/api/docs/guide…
Builders Unscripted with @DeryaTR_ Derya talked to @romainhuet about building tools for biology with Codex and a future where AI helps scientists simulate experiments. 09:17 Cell analysis with Codex 13:26 Simulating immune cells 29:48 The future of AI-powered science
@DeryaTR_ @romainhuet Watch the full episode on YouTube: youtube.com/watch?v=4sexN3…
Ship your OpenAI DevDay 2026 application by July 10: x.com/OpenAIDevs/sta…
As agents take on longer-running work, engineering shifts to setting direction, reviewing work, and designing better systems around the models. @steipete at @aiDotEngineer
⚙️ We debugged a year’s worth of crashes in our data infrastructure and found one issue in the hardware and another that has been unnoticed in open-source code for 18 years. Here’s how we tracked them down: openai.com/index/core-dum…
Your favorite Codex shortcuts are getting an upgrade. July 15th.
🆕 Codex quality-of-life updates landed this week Starting with long threads: scrolling is smoother now, and your place stays put as you move through the conversation.
Long Codex threads now have a navigation rail. Hover over the gutter to preview nearby turns, then click one to jump straight to that point instead of scrolling through the entire conversation.
Builders Unscripted with @skirano Pietro talked to @romainhuet about pushing the creative edges of GPT-5.5 and using Codex to turn ideas into software. 03:45 Images into sound 07:57 Multi-agent Codex workflows 14:34 Reviving hardware with Codex 25:27 From doing to directing
You can now spin up a persistent cloud development environment in one prompt with the @DigitalOcean plugin for Codex. It runs in your DigitalOcean account and keeps working when you step away.
Codex in the ChatGPT mobile app is now generally available. Connect your phone and computer more securely with one-to-one device pairing. We’ve also added notifications, goals, side chat, file previews, and inline review comments. x.com/OpenAI/status/…
We’ve fixed a number of paper cuts: better handling for long threads, more reliable connections, and improved diff handling. See everything that’s changed: developers.openai.com/codex/changelo…
Show us how you build with Codex. Chaotic desk, clean desk, couch desk, airport-floor desk. We don’t judge the workspace. Create your own Codex billboard here: codex-billboard.vercel.app
Over the past six months, we shipped 30+ models, features, and upgraded tools for the API. Our changelog has been busy. Here’s what you may have missed for the API: New models • GPT-5.5 • GPT-5.4 mini • GPT-5.4 nano • GPT-Realtime-2 • GPT-Realtime-Whisper • GPT-Realtime-Translate • GPT-Image-2 Agent building blocks • Agents SDK harness & sandbox • Skills in the Responses API • Server-side compaction • WebSocket mode • Hosted shell More ways to build • Admin API enhancements • OpenAI CLI • Models on Amazon Bedrock
Applications to attend OpenAI DevDay 2026 are open. Join us in San Francisco on September 29 to: • Tinker with what’s new • Swap build notes with other builders • Go deep in technical sessions • Bring your sharpest questions Apply by July 10: devday.openai.com
DevDay Exchanges are also coming to Bengaluru, Tokyo, Seoul, Paris, Berlin, London, São Paulo, and Mexico City. Stay tuned for when the application opens.
🧵 Open source runs on more than code. Over the past week, we funded maintainers directly, invested in Rust and its ecosystem, launched Patch the Planet for AI-assisted security work, and expanded Codex for OSS to more maintainers.
We started with the open-source projects we rely on. Through GitHub Sponsors, we renewed and expanded direct support for the maintainers behind open-source dependencies many teams build on. x.com/23191588/statu…
Codex works like a research partner for iOS and macOS developer @PaulSolt as he explores new frameworks and moves faster on ideas he couldn’t build before.
Show Codex a workflow once. Reuse it as a skill. Record & Replay lets you show Codex a recurring task, like filing an expense report or submitting a time-off request. Codex turns that demo into an inspectable, editable skill. You control when recording starts and stops.
Record & Replay is an optional feature rolling out to select markets, with broader availability to come. developers.openai.com/codex/changelo…
Last week, we hosted Women who Code(x) The output: task agents, personal guides, and a lot of projects shipped with Codex
Open source projects depend on the maintainers who review, release, secure, and steward the infrastructure many teams build on. We’re proud to support the @rust_foundation's work. rustfoundation.org/media/rust-fou…
More of Codex is rolling out across Europe this week. We’re bringing Computer use, the Codex Chrome extension, personalized memory, and Chronicle to Codex users in the EEA, UK, and Switzerland. developers.openai.com/codex/changelo…
Use the OpenAI Developers plugin in Codex to build faster with OpenAI tools by setting up API keys, finding the right docs, and debugging along the way.
Codex is how @ndrewpignanelli at @intelligenceco updates multiple parts of a website in parallel, turning a week of work into three days.
Ask our developer docs. They’ll show you the way The new docs agent on 🔗developers.openai.com helps you find answers about OpenAI products and takes you directly to the relevant documentation.
And it doesn’t stop at answers. Describe what you’re building and the agent will create a custom guide with a tailored prompt and relevant resources. Open the guide in Codex or copy it as Markdown for your coding agent.
Introducing developer mode for browser use in Chrome and the Codex in-app browser. Codex can use the Chrome DevTools Protocol (CDP) to debug browser issues by profiling JavaScript performance and inspecting console output, network traffic, and page state.
Invite a friend to Codex and add another reset to the bank. When they send their first Codex message, you’ll both bank one to use when you need it. Rate limit banking is rolling out to Go, Plus, Pro, and Business users, with the first reset on us. x.com/OpenAI/status/…
Through June 24, Plus and Pro users can refer up to three friends. Send this to the developer friends who keep asking for your Codex setup 😉
For musician and composer @sound4movement, Codex works like a studio assistant. He asks for a piano track in 3/4, sets the tempo and harmony, then describes how the performance should build. Codex handles the setup in Ableton Live. Michael stays focused on the creative work.
Your app can now search the web for images. Web search in the Responses API now supports image results in addition to text results, so you can build apps that surface products, places, visual references, and source links for inspiration.
23,000+ ChinaRxiv papers are now freely available with more complete English translations after one developer replaced a complex OCR pipeline with GPT‑5.5. x.com/seconds_0/stat…
Here are the experiences developers are building with the Realtime API:
Your Codex profile share card now matches your theme and includes any custom pet you’ve selected.
Developers told us building with Codex feels like flying. Go behind the build of Time to Fly 📷
