OpenAI/Dev/Day/26
Properties
- logseq-created-time-year
- 20/2/6
OpenAI DevDay 2026
- 2026-09-29, Fort Mason, San Francisco, about 2,500 developers.
- Sources: Announcements thread (OpenAI Developer Community), official recap, keynote, Every Vibe Check, Learnetto list. Coverage counts the announcements anywhere from 20-plus to 29.
Models and API
- GPT-6.1 Sol — better at coding and computer use; standard tokens cost one-fifth of Astra's. See OpenAI/Model/GPT/6/Sol and OpenAI/Model/GPT/6/Astra.
- Ultrafast mode — paid speed tier, up to 8x faster token generation in Codex and 6x in the API. Available now for Astra; Sol is coming soon.
- Agents API — public beta with hosted execution, memory, tools, and multi-agent support.
- Computer use in the Agents API — agents operate software through its interface.
- Decisions API — OpenAI/Model/GPT/6/Luna classifies inputs, routes requests, or picks from predefined options. Limited preview.
- Private Intelligence — zero data retention with Private Safety Processing; a Private Inference preview is planned for fall 2026.
- Bedrock Managed Agents, powered by OpenAI — Agents API capabilities on AWS. Only the Learnetto list carries this item.
- Speed gains — time to first token down 45% and tool calls and workflows 30% faster, per the Developer Community thread.
Plugins
- Plugin extensions — sidebar entries, interactive panels, and file viewers, with Figma and Adobe examples. See ChatGPT/Plugin/Extension.
- Plugin discovery and creation — recommendations inside conversations, and the Plugin Creator.
- Plugin submission — review tracking, clearer feedback, simpler updates to existing plugins.
- Sites with plugins — websites can use plugins with each user's own data and permissions.
- MCP Events — events from connected apps trigger automations. See Model Context Protocol.
- Sign in with ChatGPT — OAuth with ChatGPT accounts in third-party products; usage under a subscription for 16 launch partners.
- OpenAI Marketplace — enterprise customers apply existing OpenAI commitments to partner products; Baseten is included. Learnetto reports 32 initial partners.
- Website annotations — a Browser Annotation API for sites. Only the Learnetto list carries this item.
Codex
- Codex Cloud — tasks keep running with the laptop closed, reachable from other devices. See Codex/Cloud.
- Codex CLI update — two-way voice, an
/agents view, prompt editing changes, session resumption, worktree workflows. See Codex/CLI. - Code review — summaries, diffs, and change questions in ChatGPT; automatic cloud reviews on a schedule for GitHub and GitLab.
- Codex Security Cloud — vulnerability scanning with investigation, deduplication, and fix preparation; scheduled scans.
Agents and collaboration
- Dots — persistent agents with connected apps and their own cloud computer. Beta for Pro, Business, and Enterprise on web, mobile, and desktop; not in the EEA, Switzerland, or the UK. Person/Sam Altman described how he uses them on the Every podcast AI & I with Person/Dan Shipper.
- Specialist Dots — enterprise preview of agents with assigned organizational roles.
- ChatGPT Space — shared workspace for a team and its agents, with files and project context.
- Pages — collaborative documents with charts and interactive tools.
- Collaborative Slides — rolling out within weeks; export to PowerPoint or Google Slides is coming.
- Teams and Team Tasks — share work and assign recurring or event-triggered tasks.
- @ChatGPT in Slack and Microsoft Teams — mention ChatGPT with connected tools.
- Meetings plugin — notes and action items saved to Space. Beta on macOS for Pro and Business.
- Shareable profiles — one page collecting a person's Sites and plugins.
- Work across devices — start a ChatGPT Work task on desktop and continue on web or mobile. See ChatGPT/Work. Only the Learnetto list carries this item.
- Workspace connections — admins connect company app accounts for shared access. Only the Learnetto list carries this item.
- Agent security — admin policies for agent tools, approvals, web access, and sandboxing. Only the Learnetto list carries this item.
Plans
- Pro 500 — 25x the Plus usage allowance, with Ultrafast access.
- Pro 200 — reopened; new subscriptions have different allowances than grandfathered plans.