🔍 Read the full analysis: The Announcements That Defined OpenAI Dev Day 2026 on ThorstenMeyerAI.com
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TL;DR
At its September 29 DevDay, OpenAI announced persistent Dots agents, expanded plugin distribution, a limited-preview Decisions API and computer use for its Agents API. The announcements extend ChatGPT’s role as a platform where users and software agents can work with third-party apps; availability and controls vary by product and plan.
OpenAI announced persistent Dots agents, expanded plugin tools and new API capabilities at its September 29 DevDay, making a broader push to position ChatGPT as a platform for people and software agents. The company said ChatGPT reaches 1.2 billion weekly users; the new features connect that audience to third-party apps and let agents carry out work, though access depends on plan and market.
OpenAI described Dots as persistent agents powered by GPT-6 Astra, each with its own cloud computer and browser. They can connect to more than 4,000 apps through plugins and are available through ChatGPT on desktop, the web and mobile, as well as Slack and Teams. Voice calls are available, while texting is still forthcoming, according to the company.
The first Dot is included with eligible Pro and Business Premium plans in supported markets. Enterprise, Edu and Healthcare customers can use a beta when an administrator enables it; the feature is off by default. Chatting with a Dot does not count toward usage limits, OpenAI said, but tasks it starts in Codex or ChatGPT Work do. The company says customers may later add Dots or pay for more speed and monthly output per agent.
OpenAI also expanded its plugin ecosystem. Plugins can bundle skills, connections to outside services through MCP servers and optional interface elements, and can be published to a shared directory. Announced changes include plugin extensions inside ChatGPT, a new creator and submission flow, improved discovery, Sites that host plugins for teams, and support for MCP Events that can trigger automations when activity occurs in a connected app.
Two API announcements target specific kinds of work. The Decisions API, powered by GPT-6 Luna, lets developers define questions and a finite set of permitted answers, then provide text or images as context; it is in limited preview. The Agents API now supports computer use, allowing agents to operate software through its interface. OpenAI said it runs the Codex harness for that capability.
At DevDay, OpenAI also introduced Sign in with ChatGPT, which lets people use an existing ChatGPT plan with 16 launch partners. The arrangement could let developers offer a free core app alongside paid upgrades, although the details of individual partner offers are not specified in the supplied announcement. The company’s model announcements included GPT-6.1 Sol, which it described as offering near-Astra intelligence at one-fifth of Astra’s token prices.
OpenAI DevDay 2026 at a glance
The five launches that matter, plus Sol
The rest of the slate
Collaboration
ChatGPT SpacelivePagesliveCollaborative slidesnext few weeksTeams and Team Taskslive@ChatGPT in Slack and TeamsliveMeetings pluginbeta, macOSShareable profilesliveCodex
Codex CloudliveCLI refreshvoice, /agentsCode ReviewliveCodex Security CloudlivePlans, enterprise, speed
Pro 500$500, 25× PlusUltrafastAstra now, Sol soonPrivate IntelligencePrivate Inference this fallBedrock Managed Agentsruns in AWSOpenAI Marketplace32 partners, applyChatGPT Becomes an Agent Distribution Channel
The announcements put distribution and execution at the center of OpenAI’s developer pitch. If people ask ChatGPT for an outcome and an agent selects a plugin to do the work, a software business may reach a customer through that interaction even when the customer did not search for the business by name. That creates a new route to users, while making plugin discovery and performance more consequential for developers.
For customers, Dots could take on continuing tasks across connected services rather than answer a single prompt. OpenAI’s examples include tracking customer feedback and returning tested code changes, updating a sales proposal as requirements shift, and rerunning scientific analysis when new data arrives. Those are company examples, not independent evidence of typical performance. The distinction matters because agents acting in software can make changes with real consequences.
The API and sign-in announcements also address different parts of the same platform strategy. Computer use could help agents work with existing software interfaces; the Decisions API offers a constrained way to select from answers a developer defines. Sign in with ChatGPT could reduce sign-in friction for partner apps. Together, these features could make ChatGPT both a place to request work and a route to the services that perform it, though adoption and commercial impact remain unreported.
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From Plugins to Persistent Agents
OpenAI presented the announcements as a move from chatbot interactions toward an agent platform. Plugins provide the connections through which ChatGPT and Dots can reach outside services. The new extensions, directory changes and event triggers expand how developers can build and distribute those connections. OpenAI said Dots can reach more than 4,000 apps through plugins, but the announcement does not identify how many of those integrations support each new feature.
The company outlined both consumer and enterprise uses. A Dot can have its own cloud computer and browser, while specialist enterprise agents can have separate identities, credentials and hardware provisioned by an organization’s IT team. OpenAI said it is beginning pilots in procurement, invoice processing, email marketing, customer support and commercial contracting. It also plans an integration with Microsoft Agent 365 for governance.
OpenAI’s model slate included GPT-6.1 Sol, with a price and capability comparison made by the company, as well as other named releases including Ultrafast and Pro 500. The supplied announcement provides no further specifications for those products. Its claims about relative intelligence and token prices should be read as OpenAI’s descriptions, rather than as independently established comparisons.
Access, Oversight and Performance Questions
Several practical details remain unclear from the announcement, including when the Decisions API will move beyond limited preview and how broadly the new features will be available across countries and plans. OpenAI has not provided the full specifications or independent evaluations needed to assess the GPT-6.1 Sol comparison in the supplied material. The number of apps reachable through plugins does not by itself establish how reliably Dots can complete tasks across them.
OpenAI says Dots can make mistakes and describes controls including Custom Rules to allow, require approval for or block actions; an Activity View for background work; and monitoring that can pause or stop an agent. The company says proactive background research is restricted to read-only tools, sensitive actions such as changing a password stay with the user, and saved passwords can be used without exposing them to the model. How these safeguards work in particular integrations, and how organizations will audit actions across connected apps, is not detailed here.
It is also not yet clear how partner apps will price their offers through Sign in with ChatGPT, how developers will measure whether plugin placement leads to completed work, or how much autonomy customers will grant persistent agents. The announcement describes intended capabilities and early pilots, but does not report broad customer adoption or measured business results.
Previews and Enterprise Pilots
The next milestones are the limited-preview Decisions API, the beta for eligible Enterprise, Edu and Healthcare customers, and OpenAI’s announced specialist-agent pilots. Enterprise customers will be able to spend part of their OpenAI commitment through a marketplace that has 32 launch partners, including Figma, Adobe, Salesforce, ServiceNow, Harvey, CrowdStrike and Baseten, according to the announcement.
OpenAI also plans a Microsoft Agent 365 integration for governance and says texting for Dots is coming. Developers and customers will be able to judge the practical reach of the platform as these features roll out: which integrations are supported, what approvals agents require, and whether they complete work reliably across different tasks. The company has not given a broad release date for all the features described.
Key Questions
What did OpenAI announce at DevDay 2026?
OpenAI announced Dots agents, expanded plugins, a limited-preview Decisions API, computer use in the Agents API, and Sign in with ChatGPT for 16 launch partners. It also presented new model offerings, including GPT-6.1 Sol.
Who can use Dots?
OpenAI said Dots are available to Pro and Business Premium users in eligible markets. Enterprise, Edu and Healthcare customers can use a beta if an administrator enables it; access is off by default for those plans.
What is the Decisions API?
It is an API powered by GPT-6 Luna that selects from a finite set of answers defined by a developer, using text or images as context. OpenAI said it is in limited preview.
How do plugins fit into the announcements?
Plugins connect ChatGPT and Dots to external services and can include reusable skills and interface elements. OpenAI announced extensions, improved discovery and MCP Events, which can start automations when activity occurs in a connected app.
What remains unknown about the rollout?
The announcement does not give broad release dates for every feature or independent evidence of agent performance. Availability, integration coverage, pricing and measured results will become clearer as previews and pilots proceed.
Source: ThorstenMeyerAI.com
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