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Sep 29, 2026

OpenAI announces Codex cloud environments, Decisions API and Ultrafast tier at DevDay 2026

At DevDay 2026 in San Francisco, OpenAI unveiled major updates including reusable cloud development environments for Codex, automatic security scanning for GitHub repositories, a new Decisions API for fast single decisions, Computer Use support in the Agents API, and an Ultrafast premium tier promising up to eight times faster performance.

Sep 29, 2026·7 sources
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Top claims

  • ▪OpenAI's updated Codex Command Line Interface, released on September 29, 2026, allows developers to start and direct tasks using voice commands
  • ▪OpenAI introduced GPT-6.1 Sol on September 29, 2026, a cheaper workhorse model designed for professional work, computer use, and agentic coding.
  • ▪OpenAI announced more than 20 new products and features at its annual DevDay developer conference in San Francisco on September 29, 2026.

Subtopics

AI agents1AI coding assistants1AI for developers1AI tools & products1Cloud development environments1

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