cd /news/ai-products/openai-expands-codex-and-its-api-at-… · home › topics › ai-products › article
[ARTICLE · art-141918] src=the-decoder.com ↗ pub= topic=ai-products verified=true sentiment=↑ positive

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

At DevDay 2026, OpenAI expanded Codex with reusable cloud environments, automatic security scans for GitHub repositories, and a code review view in the desktop app, while adding Computer Use support to the Agents API and introducing a new Decisions API for fast, single decisions. OpenAI also launched the Ultrafast premium tier, which it says delivers up to eight times the speed at six times the price.

by read1 min views1 publishedSep 29, 2026

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.

── more in #ai-products 4 stories · sorted by recency
── more on @openai 3 stories trending now
sponsored brought to you by zahid.host 4,200+ EU-deployed projects
reading about agents? ship yours in a single git push.

Run your AI side-project on zahid.host

EU-based hosting, git-push deploys, automatic HTTPS, no cold starts. Free tier with a custom domain — perfect for shipping the agent you just read about.

$git push zahid main
→ Live at https://your-agent.zahid.host ✓
Get free account → Pricing
from €0/mo · no card required
LIVE [news/openai-expands-codex…] indexed:0 read:1min 2026-09-29 · —