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OpenAI gives Codex reusable cloud environments that work across devices

OpenAI is expanding Codex with reusable cloud development environments, a revamped CLI with voice controls, new code review tools, and a security-focused product for scanning repositories and preparing fixes.

OpenAI expands Codex and its API at DevDay with security scans, a Decisions API, and Ultrafast

29 September 2026 at 17:14

Smartphone view of Codex showing the "All," "Cloud," and "Jay's MacBook Pro" filters above a project list that includes "Landing page" and "Sales dashboard," with a purple cloud icon featuring a terminal symbol next to it.

At DevDay 2026, OpenAI gave Codex reusable cloud environments, automatic security scans for GitHub repositories, and a code review view in the desktop app. The Agents API now supports Computer Use, and a new Decisions API handles fast, single decisions. The Ultrafast premium tier promises up to eight times the speed at six times the price.

The article OpenAI expands Codex and its API at DevDay with security scans, a Decisions API, and Ultrafast appeared first on The Decoder.

AI agent swarms are a massive waste of tokens with zero quality gain, says OpenAI Codex developer

17 September 2026 at 11:03

OpenAI Codex developer Eric Provencher warns that running more than two parallel sub-agents almost always burns tokens without improving quality because agents don't trust each other and end up double-checking everyone's work. He calls this the "coordination tax" and points to a project where 1,393 agents spent $20,000 in tokens on a single Python refactoring that one Astra agent could have handled for a fraction of the cost.

The article AI agent swarms are a massive waste of tokens with zero quality gain, says OpenAI Codex developer appeared first on The Decoder.

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