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Operational story trace

OpenAI DevDay

Current stateAnnouncedstatus changed Sep 29

Latest change

Latent Space's Sep 30 recap lists the full slate (Dots, 6.1 Sol, Ultrafast, Decisions API, Agents API, Spaces, Marketplace) and cites 1.2 billion ChatGPT weekly users.

Earlier contextThe story so far

OpenAI used its Sep 29 DevDay to announce GPT-6.1 Sol, computer use in the Agents API, cloud-based Codex environments, a Decisions API and new ChatGPT plugin capabilities. Simon Willison live-blogged the keynote from the floor.

editor-curated · source-linked

Arc

Sep 29Sep 30 · now
LAUNCH · Sep 29
DevDay 2026: GPT-6.1 Sol, Agents API computer use, cloud Codex, Decisions API
2 sources · show sources ▾
NOW · Sep 30
Latent Space tallies the full slate, from Spaces and Marketplace to 1.2B ChatGPT WAU
1 source · show source ▾

What to watch — open questions

  • What pricing and rate limits apply to computer use in the Agents API?
  • When do cloud-based Codex environments and the Decisions API reach general availability?
  • How does GPT-6.1 Sol perform in independent evals against the prior GPT-6 Astra?
How this thread was built
scout surfaced this threadeditor wrote the arc · 2 beatswatcher 1 status change

Storylines are threaded mechanically from the feed: stories that share a distinctive anchor across multiple days and sources. Each item links to its original source. The evidence trace, current state, and open questions are written by the editor routine and refreshed whenever a new beat lands.