mAIn Street #322: OpenAI DevDay rolls out tons of new features, announcements - read on for the full rundown



Dots, Codex in the cloud, GPT-6.1 Sol and every major DevDay announcement, with rollout details.
mAIn Street Daily Newsletter. AI news for people who actually have jobs to do.
Wednesday, September 30, 2026 · Edition 322

Good morning. Today’s edition is devoted to OpenAI DevDay, with a separate story for each announcement and clear details on access and rollout.

OpenAI’s September 29 recap · Features are rolling out; account and workspace access may vary.

TOP 5

Five DevDay stories worth your time.

OpenAI illustration of an onboarding prototype in ChatGPT Space with two collaborators.

OpenAI’s illustration of people collaborating on a prototype in ChatGPT Space. Image: OpenAI.

01 · Dots

Your Dot can keep working across days, projects and apps.

OpenAI’s Dots are ongoing agents with their own cloud computer, browser and connected apps. A Dot can keep track of a project, prepare work while you’re away and carry context between ChatGPT, Slack and Teams. Its background research uses read-only tools; actions follow your permissions and approval rules.

Your first Dot is rolling out with Pro and Business Premium in eligible markets. Enterprise, Edu and Healthcare users need an admin to enable the beta. OpenAI also previewed specialist Dots for defined company responsibilities, beginning with enterprise pilots.

OpenAI / Dots announcement

02 · Codex in the cloud

Codex in the cloud keeps coding tasks moving with your laptop closed.

You can start and continue coding tasks from desktop, web or mobile. Reusable cloud environments hold a project’s repositories, tools and dependencies, while each task gets its own workspace. Codex can keep working while your computer sleeps; you return to review changes and test results.

Cloud access is rolling out to eligible Plus, Pro, Business, Enterprise, Healthcare and Education accounts. Workspace settings still apply. The setup is reusable, so a team can give new tasks the same approved tools instead of rebuilding the environment each time.

OpenAI / Codex Cloud guide · Plan eligibility and rollout

03 · GPT-6.1 Sol

GPT‑6.1 Sol brings stronger coding and business work at a lower API cost than Astra.

OpenAI reports that its new Sol model approaches Astra on several tests of coding, document understanding and computer use. It is rolling out in ChatGPT Work and Codex for eligible paid plans, and is available through the API. It has not reached ordinary Chat.

Standard API pricing is $2 per million input tokens, $0.10 for cached input and $10 for output. Those rates matter for businesses running repeated tasks. OpenAI’s test results do not establish equal performance on every job.

OpenAI / GPT‑6.1 Sol announcement

04 · ChatGPT Space

ChatGPT Space gives teams a shared home for files, knowledge and AI work.

Library becomes Space for Pro, Business and Enterprise users. Teams can keep files and shared knowledge together, then bring ChatGPT, Codex or a Dot into the work. Web and desktop support creating and editing pages; mobile supports finding, reading and sharing them, with editing coming later.

OpenAI / Space product guide

05 · Plugin extensions

Plugin extensions let outside apps work beside the ChatGPT conversation.

Developers can give a plugin its own sidebar entry, a full-screen app or a panel beside the conversation. They can also build viewers and editors for supported file types. This creates room for a product’s working interface inside ChatGPT, with the conversation available alongside it.

Plugin requirements and workspace controls still apply.

OpenAI / plugin extension documentation

AI Workflows | Wednesday: Problem and product prototyping

A small intake form can show whether the second customer email is avoidable.

On September 29, OpenAI released GPT-6.1 Sol in ChatGPT Work and Codex, with improvements in coding and multistep work. Work can build a private, interactive Site preview, though Sites and app connections depend on your plan and workspace settings. Put those capabilities to a narrow test: can a better customer intake form collect the facts your staff usually has to ask for later?

Picture a print shop getting “I need 500 flyers next week.” A staff member still needs the finished size, whether the artwork is ready, the actual due date, and pickup or delivery. The useful prototype is a working form with a few conditional questions and an internal request card. Its job is to make an estimate possible without making a simple order tedious.

The decision: Do enough customers provide usable details through this form to justify a small live pilot? Set a pass mark before looking at the results.

Ask an experienced employee which details are truly required. In an approved work account, give Work read-only access to past inquiries through a connected app and have it find the questions that repeatedly caused follow-up. Have it build the form and staff view in a private Site preview. Keep customer names and message text out of the prototype. If the approved connection is unavailable, use de-identified examples. The form should allow “I don’t know,” display missing facts clearly, and never invent a price or promise a delivery date.

Assignment to copy: “Build a private, mobile-friendly Site preview for our print-shop service desk. Review only the completed inquiries I have authorized through our read-only connection; identify details that led to extra emails. Use those patterns, without copying customer information into the Site, to make a short form that asks for quantity, finished size, artwork readiness, exact due date, and pickup or delivery. Let people say they do not know an answer. Show staff a request card with supplied facts and open questions. Test the form on ten de-identified past cases, including a rush job and one with no artwork. Report failures and time per case. Do not publish, send messages, change records, quote a price, or promise availability. Stop for my review.”

Have a colleague play the requester using the full history of each test case. One reasonable bar: at least eight of ten cards contain enough information to start an estimate and take under two minutes to complete, with zero unsupported commitments. Fix confusing questions and rerun the failures. Passing earns a supervised customer pilot; it does not prove how real customers will behave.

A manager can run the same test on one service line before approving a wider rollout. Start with the ten requests that produced the most back-and-forth, and find out which question is worth asking up front.

AI TOOL SPOTLIGHT · Meetings plugin

Meetings turns a conversation into notes and follow-up work.

The Meetings plugin saves personalized summaries and action items in Space. It uses your Mac’s microphone and system audio, so no bot has to join the call. Notes start private; you can review them, share them and ask ChatGPT to draft a follow-up or update a plan.

The beta is rolling out on macOS for Pro and Business users. Windows, iOS and Android support are coming later; Enterprise has a limited alpha. Audio is deleted after processing. For a first try, get everyone’s consent, take notes on an internal meeting and check the action items before sharing.

OpenAI / Meetings setup and availability

THE REST OF DEVDAY

Headlines

Working together

Pages

Pages let people and agents edit the same living document.

A Page can combine text, images, charts and interactive tools. Teammates edit together and leave comments, while ChatGPT helps revise the work. Pro, Business and Enterprise users can also set up automations to update pages from specified sources.

OpenAI / feature details

Collaborative slides

Collaborative slides will bring teammates and AI into one deck.

Coming in the next few weeks for Pro, Business and Enterprise, the feature supports shared editing, comments and your own templates. OpenAI says decks can be presented in ChatGPT or exported to PowerPoint and Google Slides with formatting retained.

OpenAI / feature details · Export details and timing

Create teams and share tasks

Teams can share recurring tasks and refine the instructions together.

Business and Enterprise teams can delegate jobs such as weekly project updates. Team Tasks run in the cloud on a schedule or in response to connected-app events. Shared instructions, authorized connections and workspace permissions determine what each task can do.

OpenAI / feature details

@ChatGPT in Slack and Microsoft Teams

Mention @ChatGPT in Slack or Teams to work inside the conversation.

Colleagues can add context and refine a result in a channel, thread or direct message. Enabled teams can use approved connections without every participant needing an individual ChatGPT license. The product page lists Business, Enterprise and Edu availability.

OpenAI / feature details

Shareable profiles

Shareable profiles put your Sites and work in one showcase.

A profile can show your bio, activity and up to 12 Sites you own. Sharing and the Sites showcase work on web and desktop. Personal profiles start private; Business sharing follows workspace settings. OpenAI’s detailed help page says Enterprise support is coming later.

OpenAI / feature details

Building and reviewing software

A refreshed Codex CLI

The refreshed Codex CLI adds voice and a clearer view of agents.

Developers can speak to Codex in the terminal and follow the agents working on separate tasks. The refresh also improves worktree handling, usage information and rendering. Codex is included across plans; the CLI’s local work still depends on its configured permissions.

OpenAI / feature details

Code Review

Code Review brings proposed changes and AI feedback into the desktop app.

Read change summaries, inspect differences between versions and ask Codex to investigate potential problems. The new view covers GitHub pull requests and GitLab merge requests, with GitLab support in preview. With the required GitHub connection and automatic reviews enabled, a cloud review can arrive before you open the request.

OpenAI / feature details

Codex Security Cloud

Codex Security Cloud scans repositories and prepares fixes while you’re away.

Scan GitHub repositories on demand or monitor new commits. Codex investigates findings and proposes patches for review. OpenAI’s release notes also describe scheduled scans, duplicate removal and access to Daybreak Blue models within this product. Repository permissions, setup and billing configuration apply.

OpenAI / feature details · DevDay release notes

Models, speed and developer tools

Ultrafast

Ultrafast trades a higher service cost for faster generation.

The premium speed tier is available for GPT‑6 Astra through the API and in Work and Codex on Pro 500 and Enterprise. It aims to shorten waits between successive agent steps. GPT‑6.1 Sol Ultrafast is coming soon.

OpenAI / feature details

Private Intelligence

Private Intelligence adds protected safety processing and previews private inference.

Zero Data Retention with Private Safety Processing allows automated safety checks without OpenAI personnel viewing protected content. Encrypted safety records remain in the customer’s storage. A Private Inference preview, using confidential computing, is coming this fall.

OpenAI / feature details · Private Inference preview

Decisions API

Decisions API returns a choice from answers you define.

Give Luna text or image context, a specific question and a finite answer list. The response can classify content, route requests or choose an agent’s next action. Limited preview begins now; wider release is planned in coming days.

OpenAI / feature details

Agents API with Computer use

The Agents API adds computer use for working through software interfaces.

Developers can build agents that navigate a hosted browser, gather information, test websites and complete tasks through software interfaces. OpenAI runs the underlying agent infrastructure. Computer use is the DevDay addition to the existing Agents API, which also supports multiple agents and context management.

OpenAI / feature details

Bedrock Managed Agents, powered by OpenAI

Bedrock Managed Agents bring OpenAI’s agent tools into AWS.

The limited preview combines OpenAI’s agent runtime with AWS services, identities and activity logs. AWS says model inference runs on Bedrock and customer data stays within AWS. The offering is aimed at teams that already build and govern their applications there.

AWS / product details

Plugins and connected work

Improved plugin creation, submission, and discovery

Plugin Creator helps build plugins, with clearer submission feedback.

OpenAI also updated directory ranking and recommendations to help people find relevant plugins. Users choose what to install and approve its access.

OpenAI / feature details

Sites can now host plugins

Sites can host supported plugins using each teammate’s own connections.

Supported plugins can connect a shared Site to each teammate’s own data and permissions. OpenAI lists Business, Enterprise, Healthcare and Edu access for the update. Site owners can also add cloud schedules; those tasks need their own authorized data access.

OpenAI / feature details · Plan availability at DevDay

MCP events for plugin automations

MCP events let a connected-app update start an automation.

Instead of waiting for a scheduled check, a supported plugin can alert ChatGPT when a message, comment or status changes. Users specify what to monitor and what should happen next. The integration uses the proposed MCP Events standard and needs developer support.

OpenAI / feature details

Plans, sign-in and purchasing

Sign in with ChatGPT

Sign in with ChatGPT can carry your plan allowance into participating tools.

Plus and Pro users can authorize eligible AI requests in tools including Devin, Notion and Vercel, then set a weekly limit for each app. Login and allowance sharing are separate choices. Some partners support login only, and a partner’s separate fees can still apply.

OpenAI / feature details

A new Pro tier

Pro 500 costs $500 a month and includes Astra Ultrafast.

The new tier has the largest included allowance among Pro plans. Pro 100 and Pro 200 remain options. Existing eligible Pro 200 subscribers keep their previous allowance through October 29; afterward, that allowance decreases while the $200 monthly price stays the same.

OpenAI / feature details

OpenAI Marketplace

OpenAI Marketplace lets eligible enterprises use commitments toward partner software.

Marketplace partners include Adobe, Figma, Salesforce and CrowdStrike. Eligible customers can apply part of an existing OpenAI commitment, subject to agreed limits. Customers contract with and pay the partner directly; OpenAI reconciles the eligible spending against the commitment.

OpenAI / feature details

mAIn Street gives nontechnical readers useful AI news they can put to work.

mAIn Street #322 · Wednesday, September 30, 2026

Reporting checked through September 29, 2026.

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