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OpenAI Dev Day 2026: The releases that actually matter
30 September 2026

OpenAI Dev Day 2026: The releases that actually matter

How I AI

About

I spent the day at OpenAI’s DevDay in San Francisco, and I have good news and bad news: OpenAI released a lot of stuff.


In this episode, I break down the announcements worth paying attention to - and show you what happened when I tested some of them early. We’ll meet my Dot, explore why Spaces and Sites could matter for how teams work, and get into the model and API updates I’m most excited about as a developer.


I use the Decisions API to find podcast thumbnails where nobody looks awkward, build a collaborative sketchpad with Astra ultrafast, and let my kids redesign a 3D world in real time. That last experiment cost about $97. My wallet has thoughts.


These are my early impressions: what’s promising, what still feels rough, and what I think you should try first.


What you’ll learn:

    What OpenAI’s Dots can do, how I’ve been using mine, and why I’m waiting to give a full verdictWhy Spaces might be one of the most underhyped announcements for collaboration between humans and agentsHow Sites with connectors and plugins could help teams share internal tools with the right data permissionsWhere GPT-6.1 Sol fits in my model stack—and why speed and cost matterWhat vision adds to the Decisions API, including my thumbnail-selection and hot dog demosWhat Astra ultrafast makes possible for interactive AI apps, from collaborative drawing to a changing 3D gameWhere the speed feels magical, where the experience still needs work, and what it costs

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In this episode, we cover:

(00:00) OpenAI DevDay recap—and pressing the Codex reset button

(00:58) Dots: early impressions and rough edges

(06:57) Spaces: working with humans and agents

(10:37) Sites, connectors, and sharing internal tools

(13:06) Models and platform: GPT-6.1 Sol

(14:36) Decisions API: fast decisions with vision

(15:27) Finding better podcast thumbnails with AI

(16:29) Hot dog or not hot dog?

(17:17) Astra ultrafast: speed, pricing, and possibilities

(18:50) The Other Pencil: drawing alongside AI

(19:45) Little Starship: a 3D world you can change with a prompt

(21:24) The $97 AI game—and what it makes possible

(22:25) Agents API, computer use, plugins, and plan updates

(23:03) What I’d try first

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Tools referenced:

• ChatGPT: Dots, Spaces, and Sites: https://chatgpt.com/

• Codex: https://openai.com/codex/

• OpenAI API — GPT-6.1 Sol, Decisions API, and Astra ultrafast: https://platform.openai.com/

• Jev: https://typesafe.ai/

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Other references:

• OpenAI DevDay 2026: https://devday.openai.com/

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Where to find Claire Vo:

ChatPRD: https://www.chatprd.ai/

Website: https://clairevo.com/

LinkedIn: https://www.linkedin.com/in/clairevo/

X: https://x.com/clairevo

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Production and marketing by https://penname.co/. For inquiries about sponsoring the podcast, email jordan@penname.co.