OpenAI Unveils Dots Agent and GPT-6.1 Sol at DevDay 2026

Sam Altman opened OpenAI's DevDay 2026 keynote at Fort Mason in San Francisco with a number: ChatGPT now counts 1.2 billion weekly active users. From there, the company moved quickly through a slate of announcements that included a new flagship model, a voice-driven agent, and a workspace built for people and AI to operate side by side.

The keynote ran from 1PM ET on September 29th, and OpenAI teased more than 20 product launches across the day. Among the headline items was GPT-6.1 Sol, priced at $2 per million input tokens and $10 per million output tokens, with cached input available at a discounted $0.10.

Dots brings a voice agent to the desktop

The most attention-grabbing release was Dots, a voice-enabled AI agent powered by GPT-6 Astra. It runs on its own dedicated cloud computer rather than borrowing local resources, and connects to more than 4,000 third-party apps alongside native integrations with Slack and Microsoft Teams.

That architecture lets Dots act less like a chatbot plugin and more like a standing agent that can carry out multi-step tasks across a user's existing toolchain. Pairing a dedicated compute environment with broad app connectivity signals OpenAI's push to move agents from experimental sidebars into daily workflow infrastructure.

ChatGPT Spaces and the Decisions API

OpenAI also introduced ChatGPT Spaces, described as a shared workspace where humans and agents collaborate directly rather than through separate interfaces. The product extends the company's bet that future work happens in mixed human-agent environments, not just human-to-model chat sessions.

A more technical addition, the Decisions API, targets a narrower but practical problem: near-instant multiple-choice classification and routing. Developers can use it to make fast branching decisions inside larger applications without invoking a full generative response, which should cut latency and cost for routing-heavy pipelines.

ChatGPT has 1.2 billion weekly active users, Altman told the DevDay 2026 audience, framing the scale at which these new tools will need to operate.

Taken together, the announcements point to OpenAI positioning ChatGPT less as a single assistant and more as a platform: a model (GPT-6.1 Sol), an agent with its own compute and app reach (Dots), a collaborative surface (Spaces), and infrastructure-level tooling (Decisions API) meant to support developers building on top of all three.