🔍 Read the full analysis: OpenAI Dev Day 2026: What To Watch After The Event on ThorstenMeyerAI.com
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TL;DR
OpenAI used its September 29 DevDay to announce more than 20 products and features, positioning ChatGPT as a platform for people and software agents. The announcements include persistent Dots, expanded plugins, two developer APIs, ChatGPT sign-in for partner apps and new models. Availability and further rollout details vary, and some announcements remain in preview or beta.
OpenAI announced more than 20 products and features at its September 29 DevDay, centering the event on ChatGPT as a platform for people and software agents. The announcements include always-on Dots, expanded plugins and new APIs for handing off decisions and operating software; OpenAI says ChatGPT reaches 1.2 billion weekly users.
The largest consumer-facing announcement is Dots, persistent agents powered by GPT-6 Astra. OpenAI says each Dot has its own cloud computer and browser, can connect to more than 4,000 apps through plugins, and can work on multiple projects over time. Users can reach them through ChatGPT on desktop, web and mobile, as well as Slack and Teams. Voice calls are available, while texting is described as coming later.
Access depends on the account and market. OpenAI says 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; the feature is off by default. The first Dot is included with the plan, and chatting with it does not count toward usage limits. Tasks it starts in Codex or ChatGPT Work do count. OpenAI says users may later add Dots or pay for more speed and monthly output per Dot.
OpenAI also expanded its plugin system, which it says will serve ChatGPT, Codex and Dots. Updates include plugin extensions inside ChatGPT, a new creator and submission flow, improved discovery, Sites for hosting plugins, and support for MCP Events that can trigger automations when something happens in a connected app. The company also announced an OpenAI Marketplace for eligible enterprise customers, with 32 launch partners, including Figma, Adobe, Salesforce and ServiceNow.
Two developer tools target specific tasks. The Decisions API uses GPT-6 Luna to select from a finite set of answers defined by the developer, using text or images as context. OpenAI describes uses such as classifying content, routing requests or choosing an agent’s next action. It is in limited preview. The Agents API now supports computer use, allowing agents to operate software through its interface; OpenAI says it runs the Codex harness for developers.
For consumer apps, Sign in with ChatGPT lets users bring an existing plan to 16 launch partners. OpenAI presents this as a way for developers to offer a free core app with paid upgrades. The model announcements include GPT-6.1 Sol, which OpenAI describes as offering near-Astra intelligence at one-fifth of Astra’s token prices. The source material does not provide fuller specifications for the other models mentioned, including Ultrafast and Pro 500.
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 connect OpenAI’s consumer product, developer tools and business integrations. If users ask ChatGPT to complete a task, a plugin may determine which outside service gets selected to do the work. That makes plugin visibility and access permissions consequential for software companies seeking users through ChatGPT, beyond the features in their own apps.
Dots also put more emphasis on software that can act over time. OpenAI’s examples include tracking customer feedback and returning tested pull requests, revising a launch plan as scope changes, and updating a sales proposal when requirements shift. These are examples supplied by OpenAI, not independently established performance results. The practical impact will depend on what users allow agents to access, how reliably they complete tasks and how much work counts toward usage limits.
For businesses, specialist Dots could take on defined responsibilities using separate identities, credentials and hardware provisioned by IT. OpenAI says it is beginning pilots in procurement, invoice processing, email marketing, customer support and commercial contracting, and plans an integration with Microsoft Agent 365 for governance. These pilots could show whether organizations can manage agents at work, but the announcement does not establish that the systems are broadly deployed or have delivered measured savings.
From ChatGPT Features to Agent Tools
OpenAI framed the event as a move toward a shared surface where people and agents can work. The company said ChatGPT has 1.2 billion weekly users, giving developers a potential route to reach customers through the product. That figure is OpenAI’s stated audience measure; the material does not give a measurement method or reporting period beyond weekly users.
The product announcements build on plugins as a way to connect ChatGPT with outside services. Under the new setup, a plugin can combine reusable skills, connections to services through MCP servers, and optional interface elements. OpenAI says developers can publish a plugin to a shared directory. The company also highlighted support for the proposed MCP Events specification, which could let connected apps start automations in response to events such as a new project-board task.
OpenAI’s event material describes Dots as working from separate cloud computers and browsers. It says laptop access requires user permission, background proactive research is limited to read-only tools, and saved passwords can be used without exposing them to the model. Users can set Custom Rules to allow, require approval for or block actions, review activity and pause or stop a Dot. OpenAI says sensitive tasks such as changing a password remain with the user, and warns that Dots can make mistakes.
Rollout, Costs and Reliability Remain Open
Availability is not uniform. The source says Dots are open to certain Pro and Business Premium users in eligible markets, while Enterprise, Edu and Healthcare access is through a beta enabled by an administrator. It does not identify every eligible market or give a complete rollout schedule. Texting is described as forthcoming, but no date is supplied.
Several practical details also remain unspecified. OpenAI says later users may add Dots or buy additional speed and monthly output per Dot, but the material gives no prices for those options. It does not quantify how often Dots complete tasks correctly, how long work takes or what safeguards apply to every connected app. The examples of invoices, pull requests and changing plans are OpenAI’s illustrations, not reported independent evaluations.
The Decisions API remains in limited preview, and the provided announcement stops before completing its description of a planned broad release. That leaves the release date and access terms unclear. The material also names GPT-6.1 Sol, Ultrafast and Pro 500 but gives limited details beyond the stated Sol price comparison. No independent performance results, full model specifications or partner-by-partner terms are included.
Watch Access and Developer Rollouts
The next visible milestones are the expansion of Dots beyond the current eligible plans and markets, the enterprise beta’s development, and the arrival of texting. Developers will be watching for clearer availability and pricing for the Decisions API, as well as updates to the plugin submission process and directory. OpenAI has not provided dates for these steps in the supplied material.
Business customers and software vendors will also be able to assess the specialist Dot pilots and the planned Microsoft Agent 365 integration as they progress. For the 16 Sign in with ChatGPT partners and the Marketplace’s 32 launch partners, adoption will depend on how users discover integrations and what permissions each connection requires. Further evidence on usage, reliability, costs and governance will help establish how much of the DevDay plan reaches routine use.
Key Questions
What did OpenAI announce at DevDay 2026?
OpenAI announced more than 20 products and features, including Dots, plugin upgrades, the Decisions API, computer use in the Agents API, Sign in with ChatGPT and model updates.
Who can use Dots?
OpenAI says Dots are available to Pro and Business Premium users in eligible markets. Enterprise, Edu and Healthcare customers can access a beta when an administrator enables it.
What does the Decisions API do?
It uses GPT-6 Luna to choose among a finite set of answers supplied by the developer, based on text or image context. OpenAI says it is in limited preview.
How do Dots connect to other apps?
OpenAI says Dots can reach more than 4,000 apps through plugins. Access to a user’s laptop requires permission, according to the event material.
What remains unknown after the announcements?
Details still missing include full rollout dates, prices for additional Dot capacity, independent reliability results and the broader release timing for the Decisions API.
Source: ThorstenMeyerAI.com
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