OpenAI DevDay drops GPT-6.1 Sol, Decisions & Agents APIs, ChatGPT Space and a Marketplace
altryne · x · 2026-09-30
OpenAI DevDay shipped a huge batch of announcements, and the author condensed everything into a quick recap for the impatient:
- Dots, a new product/interaction form
- ChatGPT Space, a new space feature for ChatGPT
- GPT-6.1 Sol and an UltraFast tier
- Decisions API and Agents API for developers
- Codex fully in the cloud
- A new Marketplace
The author calls it a very heavy DevDay — this is the few-minute summary of everything.
Related event: OpenAI Dev Day 2026 Unveils GPT-6.1 Sol, Ultrafast and More(2 posts)→
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