🔍 Read the full analysis: OpenAI Dev Day 2026: What Developers Need To Know on ThorstenMeyerAI.com
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TL;DR
OpenAI used its Sept. 29 DevDay to announce more than 20 products and features, emphasizing ChatGPT as a platform for people and software agents. The announcements include persistent Dots, expanded plugins, new decision and computer-use APIs, and Sign in with ChatGPT; availability varies, and some details remain unannounced.
Dots are persistent agents powered by GPT-6 Astra, each running on its own cloud computer and browser. OpenAI says they can work across more than 4,000 apps through plugins and can be reached through ChatGPT on desktop, web and mobile, as well as Slack and Teams. Voice calls are available, while texting is described as coming later. OpenAI lists current access for Pro and Business Premium users in eligible markets; Enterprise, Edu and Healthcare customers can use a beta if an administrator enables it.
OpenAI said the first Dot is included with the plan, and chatting with it does not count toward usage limits. Tasks started in Codex or ChatGPT Work do count. The company says users will later be able to add Dots or buy more speed and monthly output. It also announced plugin extensions within ChatGPT, a refreshed creator and submission process, improved discovery, Sites that can host plugins, and support for MCP events that can trigger automations in connected apps. Its OpenAI Marketplace has 32 launch partners, including Figma, Adobe, Salesforce, ServiceNow, Harvey, CrowdStrike and Baseten.
For developers, the Decisions API uses GPT-6 Luna to select from a set of answers defined by the app developer, for jobs such as classifying content or routing requests. It is in limited preview. The Agents API now supports computer use, allowing agents to operate software through its interface, with OpenAI running the Codex harness. Sign in with ChatGPT lets customers use an existing ChatGPT plan with 16 launch partners. OpenAI also introduced 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, applyAgents Become a Route to Software
The announcements point to a shift in how developers may reach customers: users could ask ChatGPT for an outcome, then have an agent select a connected service to perform the work. Plugins become distribution channels in that model, and OpenAI’s expanded discovery and in-conversation interfaces could affect which services agents surface. That creates a practical question for software companies: whether a plugin is selected and completes the task, rather than whether a user searches for the company’s brand directly.
Dots and computer-use support also extend agents from answering questions into carrying out work. That could let teams automate recurring tasks across existing software, but it raises operational questions about permissions, reliability and oversight. OpenAI says Dots can make mistakes and provides controls including approval rules, an activity view and options to pause or stop an agent. Those safeguards matter because an agent acting through connected accounts can affect real work and data.
For app developers, the Decisions API offers a constrained way to delegate narrow choices: the developer sets the possible answers rather than receiving an unrestricted response. Sign in with ChatGPT, meanwhile, could let partner apps offer a free core product and paid features to users who already have a plan. The announcements describe potential product paths; adoption, commercial results and user demand are not yet established.
From ChatGPT to Agent Platform
OpenAI framed the event around ChatGPT’s reach, saying it has 1.2 billion weekly users. That figure was presented by the company at DevDay; the source material does not provide an independent measurement or a comparison period. The company described plugins as a common layer for ChatGPT, Codex and Dots, bundling reusable skills, connections to external services through MCP servers and optional interfaces.
OpenAI’s examples of Dots include monitoring customer feedback and returning tested pull requests, revising a launch plan when scope changes, rerunning scientific analysis as data arrives, and updating sales proposals. These are company examples, not independent evidence of typical performance. One early tester, according to OpenAI, had a Dot prepare an invoice and send it after receiving approval.
For more controlled use, OpenAI described specialist Dots for enterprise work, each with its own identity, credentials and IT-provisioned hardware. The company said pilots are starting in procurement, invoice processing, email marketing, customer support and commercial contracting, and it plans an integration with Microsoft Agent 365 for governance.
Access, Reliability and Rollout
The source material does not give a full release schedule for the announcements, and several features have restricted availability: the Decisions API is in limited preview, while enterprise and education access to Dots depends on beta eligibility and administrator activation. The timing for broader access, and the specific markets covered, is not fully stated.
It is also unclear how well Dots will perform across varied tasks in routine use, what expanded Dot options will cost, and how usage limits will apply to different kinds of work as the product develops. OpenAI has described permissions and monitoring controls but also warns that agents can make mistakes. The company has not provided independent performance results in the supplied material.
The announcement cites 1.2 billion weekly ChatGPT users and one-fifth token prices for GPT-6.1 Sol, but the source does not specify a measurement method, comparison window or model benchmark for those claims. Developers will need more detail to assess costs and performance for their own applications.
Watch for Access and API Details
Developers can track the availability of the Decisions API, the Agents API’s computer-use tools and the new plugin submission process as OpenAI publishes further documentation and expands access. Businesses considering Dots will need to check plan eligibility and, for some accounts, ask an administrator to enable the beta.
OpenAI says enterprise specialist Dot pilots are beginning in selected business functions, with a Microsoft Agent 365 integration planned. It has not specified a launch date for that integration in the source material. Further details on broad availability, pricing for additional Dots and usage, and partner rollout will determine how quickly the DevDay announcements translate into products developers can deploy.
Key Questions
What are OpenAI Dots?
Dots are persistent agents powered by GPT-6 Astra. OpenAI says each has its own cloud computer and browser and can work with connected apps through plugins.
Who can use Dots now?
OpenAI lists Pro and Business Premium users in eligible markets as having access. Enterprise, Edu and Healthcare customers can use a beta when an administrator enables it; the source material does not list every eligible market.
What does the Decisions API do?
It uses GPT-6 Luna to choose among a finite set of answers supplied by the developer, for tasks such as classifying content or routing a request. OpenAI says it is in limited preview.
What changed for plugins?
OpenAI announced plugin extensions in ChatGPT, an updated creation and submission process, improved discovery, plugin-hosting Sites and support for MCP events that can start automations in connected apps.
What is still unknown about the DevDay announcements?
Broader release dates, full availability by market, pricing for additional Dots and independent evidence of performance are not specified in the supplied material. OpenAI also warns that Dots can make mistakes.
Source: ThorstenMeyerAI.com
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