🔍 Read the full analysis: A Guide To OpenAI Dev Day 2026 Announcements on ThorstenMeyerAI.com
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TL;DR
OpenAI used its Sept. 29 DevDay to promote ChatGPT as a platform for people and software agents, announcing more than 20 products and features. The headline announcements include persistent Dots, expanded plugins, new APIs for bounded decisions and computer use, and GPT-6.1 Sol; availability varies, and some details remain unspecified.
OpenAI announced more than 20 products and features at its DevDay on Sept. 29, 2026, positioning ChatGPT as a platform for people and software agents. The announcements include persistent Dots that can work across connected apps, expanded plugin distribution and new agent APIs, changes that could affect how companies build and deliver software. Availability ranges from current access for some subscribers to limited previews and pilots.
The central consumer announcement is Dots, persistent agents powered by GPT-6 Astra. Each Dot runs on its own cloud computer and browser and can connect to more than 4,000 apps through plugins. OpenAI says users can reach Dots in ChatGPT on desktop, web and mobile, as well as Slack and Teams. Voice calls are available, while texting is still coming. The first Dot is included for eligible Pro and Business Premium users in supported markets. Enterprise, Edu and Healthcare customers can use a beta if an administrator enables it; the feature is off by default.
OpenAI’s examples describe Dots monitoring customer feedback, preparing tested code changes, updating sales proposals and rerunning research analyses when new data arrives. These are company examples, not independent evaluations. OpenAI says users can set rules that allow, require approval for or block actions, review background work in an Activity View, and pause or stop an agent. Some sensitive actions remain with the user, and the company warns that Dots can make mistakes. Chatting with a Dot does not count toward usage limits, but tasks it starts in Codex or ChatGPT Work do.
Plugins are being expanded across ChatGPT, Codex and Dots. New plugin extensions can add interactive panels and file viewers to ChatGPT; OpenAI also announced a creator and submission flow, improved discovery, hosted Sites for organizations, and support for MCP Events that can start automations when something happens in a connected app. An OpenAI Marketplace will let eligible enterprise customers spend part of their OpenAI commitment with 32 launch partners, including Figma, Adobe, Salesforce and ServiceNow.
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, applyHow Agents Could Find Software
The announcements point to a change in how some software may reach customers: users could ask an agent for an outcome, with the agent selecting a plugin or service to do the work. That makes plugin discovery, permissions and reliable completion relevant to businesses that want to be used through ChatGPT. OpenAI’s pitch is that plugins can connect services and trigger actions; whether this brings new customers or dependable revenue for developers remains unproven.
For organizations, persistent agents could handle recurring work across apps, but they also raise practical questions about oversight and access. OpenAI’s controls, including approval rules and activity monitoring, are part of its stated approach to managing those tasks. The announcement does not establish how well Dots perform across real workloads or how much supervision they require.
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From Chatbot to Agent Platform
OpenAI said ChatGPT reaches 1.2 billion weekly users and framed it as a shared surface for humans and agents. That figure is the company’s own description; the source material provides no measurement method or comparison period. DevDay’s announcements build on the idea that ChatGPT can connect users not only to answers but also to apps and actions.
The company also described specialist Dots for enterprises, with separate identities, credentials and organization-provisioned hardware. Initial pilots are planned for procurement, invoice processing, email marketing, customer support and commercial contracting. OpenAI said it plans to integrate with Microsoft’s Agent 365 for governance. The source material does not give a timeline for that integration.
Access, Pricing and Performance
Several announcements lack full release details. The Decisions API, which uses GPT-6 Luna to select from a developer-defined list of answers, is in limited preview; the supplied source cuts off before giving its promised broader release timing. The Agents API now supports computer use, with OpenAI running the Codex harness, but the source provides no general availability date or performance results.
GPT-6.1 Sol was presented as offering near-Astra intelligence at one-fifth of Astra’s token prices. That is an OpenAI claim, and the source gives no benchmark results or pricing schedule to assess it. Details on other named model offerings, including Ultrafast and Pro 500, are also absent. The source does not specify which markets qualify for all features, the cost of adding more Dots or buying additional speed and monthly output, or how the announced safeguards perform in practice.
Previews and Pilots Set the Pace
Availability will expand in stages according to the announcement: Dots are available to eligible Pro and Business Premium users in supported markets, while enterprise and other listed sectors require an administrator-enabled beta. Specialist Dots are starting in pilots. Developers can use the Decisions API in limited preview, and the Agents API’s computer-use support and plugin tools will determine how quickly teams can put the announcements into products.
OpenAI has not supplied dates for several broader launches, including the Decisions API release and the planned Agent 365 integration. Developers and customers will need those details, along with independent evidence of reliability, pricing and task performance, to judge how much of the DevDay platform is ready for routine use.
Key Questions
What are OpenAI Dots?
Dots are persistent agents powered by GPT-6 Astra. OpenAI says they run on their own cloud computers and browsers and can work with connected apps through plugins.
Who can use Dots now?
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 did OpenAI announce for developers?
Announcements include expanded plugin tools, MCP Events for app-triggered automations, a Decisions API in limited preview and computer-use support in the Agents API.
What is still unknown about the announcements?
Release dates for several features, detailed pricing, and independent evidence of agent performance are not provided in the source material. The Decisions API remains in limited preview.
Source: ThorstenMeyerAI.com
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