Issue No. 40Week ending Sunday, October 4, 2026806 episodes · 3,521 write-ups
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OpenAI DevDay 2026: Dots, Spaces, and ULTRAFAST

With Claire Vo · Wednesday, September 30, 2026

Claire Vo recaps the major product announcements from OpenAI DevDay 2026 in San Francisco. She shares hands-on testing results for OpenAI's new autonomous agent called Dots, the collaborative workspace ChatGPT Spaces, and enterprise Sites with plugin connectors. She also tests new developer models including GPT-6.1 Sol, the vision-enabled Decisions API, and the low-latency GPT-6 Astra ULTRAFAST mode across interactive 3D and drawing demos.

Key takeaways

  • OpenAI introduced ChatGPT Spaces at DevDay 2026 as a shared environment for documents, slides, and HTML artifacts where humans and software agents work together. Read more →
  • OpenAI introduced three execution tiers for its developer models: normal mode, fast mode at 2x speed, and ULTRAFAST mode at 8x speed. Read more →
  • OpenAI introduced the Decisions API at DevDay 2026, creating a direct competitor to Jev for fast, constrained classification. Read more →
  • OpenAI Dots run as persistent, always-on agents operating across ChatGPT, Codex, cloud instances, local machines, Slack, and phone calls. Read more →
  • OpenAI Sites allows builders to bundle live enterprise data connectors, such as Snowflake, directly into generated web applications. Read more →

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