# OpenAI adds Ultrafast API tier, Decisions API and security scans at DevDay

Digest AI · Agents & Tools · published 2026-09-29T17:14:41Z

Canonical: https://digestai.news/story/openai-adds-ultrafast-api-tier-decisions-api-and-security-scans-at-dev

## Summary

OpenAI announced updates to its Codex coding assistant and API at DevDay 2026 in San Francisco. The company introduced **Codex Security Cloud**, which scans GitHub repositories for vulnerabilities and prepares fixes automatically. It also launched **reusable cloud environments** for faster task setup, a **voice-controlled CLI**, and a **code review feature** in the ChatGPT desktop app for multi-project analysis.

Developers gained **Computer Use** in the Agents API, letting agents operate software independently. OpenAI also rolled out the **Decisions API**, built on GPT-6 Luna, for fast single decisions and classification tasks. A new **Ultrafast** API tier—six times the standard rate—boosts token generation speed by up to six times for GPT-6 Astra on Enterprise plans and the new **Pro 500** subscription ($500/month). The existing Pro plan’s usage limits were reduced, and GPT-6 Pro message limits were halved.

## Key points

- Codex Security Cloud scans GitHub repos for vulnerabilities and auto-generates fixes in the cloud
- Decisions API uses GPT-6 Luna for fast classification and routing tasks in limited preview
- Ultrafast API tier costs six times standard rate for up to sixx faster token generation

## Why it matters

Ultrafast speeds up code generation for high-volume tasks, while the Decisions API enables faster agent decision-making. Security scans and reusable environments reduce developer friction, but the price hikes may limit adoption for smaller teams.

## Sources

1. [OpenAI expands Codex and its API at DevDay with security scans, a Decisions API, and Ultrafast](https://the-decoder.com/openai-expands-codex-and-its-api-at-devday-with-security-scans-a-decisions-api-and-ultrafast) (The Decoder, 2026-09-29)

Part of the developing story: [OpenAI Unveils GPT-6 Sol and Luna Models](https://digestai.news/thread/comparing-openai-models-on-aws-for-workload-efficiency) (6 stories)

## Cite

Digest AI, "OpenAI adds Ultrafast API tier, Decisions API and security scans at DevDay", 29 September 2026, https://digestai.news/story/openai-adds-ultrafast-api-tier-decisions-api-and-security-scans-at-dev

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