Tools & ProjectsSeptember 29, 2026
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OpenAI Supercharges Codex at DevDay
At DevDay, OpenAI expands Codex and its API with security scans, a Decisions API, and an Ultrafast tier.
#OpenAI#Codex#API#Security#DevDay

🔥 What happened
At DevDay 2026 in San Francisco, OpenAI rolled out a major Codex expansion: reusable cloud environments, voice-controlled CLI, code review in the desktop app, and Codex Security Cloud that automatically scans repositories for vulnerabilities. The Agents API gains Computer Use, a Decisions API built on GPT-6 Luna, and an Ultrafast tier that boosts token generation to 300 tokens/sec – at six times the standard price.
💡 Why it matters
OpenAI is turning Codex from a coding assistant into a full-fledged agent platform. The Decisions API is ten times faster than GPT-6 Luna through the regular API and targets the emerging System-1 model market. Ultrafast costs six times more – a clear signal that speed is becoming a premium feature.
⚡ Our take
OpenAI isn't just shipping features; it's building an ecosystem that locks developers in deeper. The Ultrafast price is steep, but if you want real-time agent control, you'll pay it. The question is whether competitors can match speed and price.
The title, summary and analysis of this item were produced automatically by an AI system and have not been editorially reviewed. They may contain errors, bias or omissions — when in doubt, read the linked original source.
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