🔍 Read the full analysis: OpenAI Dev Day 2026: Announcements That May Shape AI Development on ThorstenMeyerAI.com
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TL;DR
OpenAI used its Sept. 29 DevDay to present ChatGPT as a platform for people and software agents, announcing more than 20 products and features. The main developer announcements include persistent Dots, expanded plugins, a limited-preview Decisions API and computer use for the Agents API; access, pricing and several rollout details remain limited or unspecified.
OpenAI announced more than 20 products and features at its DevDay on Sept. 29, 2026, putting software agents and their connections to business apps at the center of its developer strategy. The announcements include persistent Dots agents, an expanded plugin system, a limited-preview Decisions API and computer-use support for the Agents API, changes that could give developers new ways to build automated services inside and around ChatGPT.
OpenAI described ChatGPT as a shared surface for people and agents and said it reaches 1.2 billion weekly users. The company’s largest consumer-facing agent announcement was Dots: persistent agents powered by GPT-6 Astra, each with its own cloud computer and browser. OpenAI says they can work across more than 4,000 apps through plugins and keep projects moving over time. Its examples include monitoring customer feedback, revising launch work when plans change and rerunning research analysis as new data arrives.
Dots are available now to Pro and Business Premium users in eligible markets, according to the source material. Enterprise, Education and Healthcare customers can use a beta after an administrator enables it; the feature is off by default. The first Dot is included in the plan, while tasks it starts in Codex or ChatGPT Work count toward usage limits. OpenAI says Dots run on separate cloud computers, can be monitored or stopped, and require approval or block certain actions under user-set rules. The company also warns they can make mistakes.
OpenAI also expanded plugins, which it says can connect services through MCP servers and provide reusable skills and optional interfaces. New features include plugin extensions inside ChatGPT, a creator and submission process, improved discovery, hosted Sites for organizational users and support for MCP Events that can trigger automations. The company announced an enterprise Marketplace with 32 launch partners, including Figma, Adobe, Salesforce, ServiceNow and CrowdStrike. Separately, the Decisions API uses GPT-6 Luna to select from a finite set of answers defined by a developer; it is in limited preview. The Agents API gains computer-use support, allowing agents to operate software through its interface, with OpenAI running the Codex harness.
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 Gain a Route Into Business Apps
The announcements point to a shift in how developers may distribute software: users could ask ChatGPT or an agent to complete a task, with a plugin connecting that request to a service. OpenAI’s framing is that an agent may select a business based on whether it can complete the requested job. If that model gains traction, visibility in an agent’s recommendations and the ability to complete work reliably could matter alongside a company’s own app or brand.
For businesses, persistent agents could take on recurring work across different tools, while computer use could extend automation to software without a dedicated integration. Those possibilities also make permissions, oversight and error handling consequential. OpenAI’s controls for Dots address some of those concerns, but the announcements do not establish how well the tools perform across real-world workflows or how much administration they will require.
ChatGPT’s Expanding Developer Platform
DevDay is OpenAI’s event for developer products and tools. This year’s announcements bring together several layers: models, APIs, plugins and ChatGPT distribution. Plugins are presented as a shared route into ChatGPT, Codex and Dots, while the Agents API gives developers a way to build agents and, with computer-use support, let them interact with software interfaces.
The source material also names GPT-6.1 Sol, described as offering near-Astra intelligence at one-fifth of Astra’s token prices. That is OpenAI’s characterization; the supplied material includes no independent benchmark results to assess it. The event’s broader product list includes specialist enterprise Dots, which OpenAI says are being piloted for tasks such as procurement, invoice processing and customer support, with a planned Microsoft Agent 365 integration for governance.
Access, Reliability and Pricing Questions
Several details remain unsettled or are not provided in the source material. OpenAI has not specified when Dots will reach all eligible plans and markets, the eventual cost of adding more Dots or buying additional speed and output, or how the limited-preview Decisions API will be priced and broadly released. It also has not provided independent performance evidence for its description of GPT-6.1 Sol.
The announcements describe intended capabilities and company examples, but they do not establish how reliably agents will complete tasks across different apps, how often they will need human intervention or what practical limits apply to computer use. The source material says texting is coming for Dots but gives no release date.
Rollouts and Developer Adoption
OpenAI said the Decisions API is in limited preview and promised a broader release, though the supplied source text cuts off before giving a date. Dots are rolling out to specified paid plans and are available to some enterprise, education and healthcare customers through an administrator-enabled beta. OpenAI also plans a Microsoft Agent 365 integration for specialist enterprise agents.
Developers and organizations will be able to assess the announcements as access expands and documentation, pricing and usage experience become clearer. For now, the next milestones are the wider API release, further Dots availability and the arrival of promised features such as texting.
Key Questions
What were the main announcements at OpenAI DevDay 2026?
OpenAI announced persistent Dots agents, plugin upgrades, a limited-preview Decisions API and computer-use support for the Agents API, among more than 20 products and features.
Who can use OpenAI Dots?
The source material says Dots are available to Pro and Business Premium users in eligible markets. Enterprise, Education and Healthcare customers can access a beta if an administrator enables it.
What does the Decisions API do?
It applies GPT-6 Luna to choose an answer from a finite list set by the developer, using text or images as context. OpenAI says the API is in limited preview.
Can Dots take actions without oversight?
OpenAI says users can set rules that allow, require approval for or block actions, review background work and pause or stop a Dot. The company warns that Dots can make mistakes, and some sensitive tasks remain with the user.
Source: ThorstenMeyerAI.com
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