DevDay puts Codex in the cloud and gives the Agents API computer use

Codex can now run on a computer, remotely from a phone, or in the cloud from any device, with reusable development environments that share approved settings and permissions across a team. The Codex CLI gains an /agents view for delegating and tracking several tasks at once, plus voice control. The Agents API adds computer use, and OpenAI says it also brings Codex's multi-agent capabilities, tool search, tool calling and context compaction into your own application, with OpenAI running the infrastructure. Ultrafast, a premium speed tier, is listed at up to 8x faster token generation (300 tokens per second) in Codex and up to 6x in the API. It is available for GPT-6 Astra on Pro 500 and Enterprise plans.

OpenAI also says it is adding support for the proposed MCP Events specification, so plugins can start automations when something happens in a connected app.

Why it matters: Cloud environments with team-approved permissions move Codex from a per-developer tool toward a shared runtime, which is where a spec-to-PR pipeline needs it. The Agents API's built-in compaction and multi-agent support is a hosted alternative to harness code many teams currently write themselves.