🔍 Read the full analysis: OpenAI Dev Day 2026: Key News For Developers And Builders on ThorstenMeyerAI.com
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TL;DR
OpenAI used its September 29 DevDay to announce more than 20 products and features, with a focus on making ChatGPT a platform for agents and software integrations. Key releases include persistent Dots, expanded plugins, computer use in the Agents API and a limited-preview Decisions API. Availability varies by product, and several details—including the Decisions API’s broad release timing—remain unconfirmed.
OpenAI announced more than 20 products and features at its September 29, 2026 DevDay, recasting ChatGPT as a platform for people, software integrations and persistent agents. The announcements include Dots, always-on agents powered by GPT-6 Astra; expanded plugins; computer use for the Agents API; and a Decisions API in limited preview.
Dots are persistent agents that work toward user goals and can keep multiple projects moving. OpenAI says each Dot has its own cloud computer and browser, and can connect to more than 4,000 apps through plugins. Users can reach them through ChatGPT on desktop, web and mobile, as well as Slack and Teams. Voice calls are available, while texting is still to come. OpenAI says the first Dot is included with eligible Pro and Business Premium plans in supported markets; Enterprise, Edu and Healthcare customers can access a beta when an administrator enables it.
OpenAI also expanded plugins, which bundle reusable skills, connections to external services through MCP servers and optional user interfaces. New plugin extensions can appear in the ChatGPT sidebar and add interactive panels and file viewers. A revised creator and submission process, better discovery, and Sites for hosting plugins were also announced. Support for the proposed MCP Events specification can let a plugin start an automation when something happens in a connected app. Eligible enterprise customers can also spend part of their OpenAI commitment with 32 Marketplace launch partners, including Figma, Adobe, Salesforce and ServiceNow.
For developers, the Agents API now supports computer use, allowing agents to operate software through its interface; OpenAI says it runs the Codex harness. The Decisions API applies GPT-6 Luna to constrained choices: developers define questions and a finite set of allowed answers, then provide text or images as context. The API returns a selection that an app can use for classification, routing or choosing an agent’s next action. OpenAI described GPT-6.1 Sol 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, applyAgents Become a ChatGPT Platform
The announcements put distribution and integration at the center of OpenAI’s developer strategy. If users ask ChatGPT to complete a task, a plugin may connect that request to a business’s service. That could let software providers reach customers through the outcome they deliver, even when a customer does not start by searching for the provider’s name. It also makes plugin discovery and user approval of access consequential for companies seeking agent-driven work.
Dots extend that strategy from answering requests to carrying out ongoing work. OpenAI’s examples include tracking customer feedback, revising launches as scope changes and updating proposals when requirements shift. These are company examples, not independent evidence of reliability. For developers and buyers, the practical stakes include how much work agents can complete, how permissions are controlled, and how organizations monitor actions taken in the background.
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From Chatbot to Agent Stack
OpenAI framed the event as a move from chatbot toward an agent platform and cited 1.2 billion weekly ChatGPT users as the audience it can reach. The figure was presented by OpenAI; the announcement did not provide additional detail on how that weekly-use measure is defined.
The new releases fit together: plugins connect ChatGPT and agents to external services, the Agents API adds software interaction, and the Decisions API offers a bounded way to delegate selected choices. OpenAI also described specialist Dots for enterprise use, with their own identity, credentials and IT-provisioned hardware. It is piloting them in procurement, invoice processing, email marketing, customer support and commercial contracting, and plans integration with Microsoft Agent 365 for governance.
Availability and Agent Limits
Access differs by product and customer: Dots are available to some paid users in eligible markets, while certain organizational plans require an administrator-enabled beta. The Decisions API is in limited preview, and the supplied announcement cuts off before its promised broad-release timing. OpenAI has not established in the material provided how quickly broader access will follow.
It also remains unclear how Dots perform across complex tasks in routine use, what safeguards apply to every connected app, and how much additional speed or monthly output will cost when users add Dots. OpenAI says users can set rules to allow, require approval for or block actions, review an Activity View, and pause or stop an agent. Sensitive actions such as password changes remain with the user, and saved passwords are not exposed to the model, according to the company.
Previews, Pilots and Rollout
Developers can watch for wider access to the Decisions API and further details on plugin submissions, discovery and event-triggered automations. OpenAI has said some enterprise customers can use Sites and that specialist Dots are beginning in pilots across selected business functions. The company has also planned a Microsoft Agent 365 integration for governance, though the supplied announcement gives no delivery date.
For builders evaluating the releases, the next milestones are practical: access to previews, the supported permissions and integrations for each plan, and evidence from deployment about agent accuracy and control. OpenAI’s announcements establish the direction and initial availability; they do not yet settle those operational questions.
Key Questions
What did OpenAI announce at DevDay 2026?
OpenAI announced more than 20 products and features, including Dots, plugin upgrades, computer use in the Agents API, a limited-preview Decisions API and new GPT-6 model information.
What are Dots?
Dots are persistent agents powered by GPT-6 Astra. OpenAI says each has a cloud computer and browser and can connect to more than 4,000 apps through plugins.
Who can use Dots now?
OpenAI says Pro and Business Premium customers in eligible markets can use Dots now. Enterprise, Edu and Healthcare customers can access a beta if an administrator enables it.
What does the Decisions API do?
It selects from a finite set of answers defined by the developer, using supplied text or images as context. OpenAI says it is in limited preview.
How does OpenAI say users can control Dots?
OpenAI describes customizable action rules, approval requirements, an Activity View, and controls to pause or stop an agent. It says some sensitive tasks remain with the user and warns that Dots can make mistakes.
Source: ThorstenMeyerAI.com
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