OpenAI DevDay: “Dots” agents, an Ultrafast speed tier and a $500 Pro plan
What happened?
On 29 September 2026, at its annual developer event, OpenAI announced more than 20 things. The headline items were:
- “Dots”: always-on, proactive AI agents that can keep working on a task, such as booking travel or picking up work delegated from Slack.
- An “Ultrafast” speed setting for GPT-6.1 Sol, capable of producing about 300 tokens per second, in ChatGPT, Codex and the API.
- Pro 500, a new $500-a-month plan with the highest included usage of the Pro plans.
- ChatGPT Space, a shared workspace where teammates and Dots can work on projects together, plus a new document type called Pages.
- The coding tool Codex now runs fully in the cloud, so your computer doesn’t need to stay on.
Why does it matter?
Until now most people used AI by typing a question and reading an answer. An agent is different: it can keep working in the background and take actions for you. Dots are OpenAI’s push to make that a normal part of ChatGPT. The speed tier matters too: faster output makes AI feel more like a live assistant than a tool you wait for.
Token: a small chunk of text, roughly a short word. “300 tokens per second” means very fast typing. API: the way developers plug AI into their own apps.
Who does it affect?
Mainly paying ChatGPT users and developers. Pro and Business Premium subscribers get one Dot included; extra Dots are paid.
Can I use it now?
Not necessarily. OpenAI described these as announcements with staged rollouts, and it said GPT-6.1 Sol “will soon” offer the Ultrafast setting. Check OpenAI’s release notes for what has reached your plan.
How do I try it?
Open ChatGPT and look under your plan and settings, or watch the ChatGPT release notes for when each feature arrives. If you’re new to agents, read What Are AI Agents? first.
Coverage of the event also mentioned controversy over security disclosures. Details differed between reports, so we haven’t repeated them here; we’ll update this story if OpenAI confirms specifics.
Sources
Silent Overseer uses AI tools to help research and draft, and every article is reviewed before publishing. How we work. Spotted a mistake? We correct and date changes.