FrontierThe story, in brief
Introducing GPT-5.2-Codex
OpenAI just shipped GPT-5.2-Codex. Long-horizon reasoning + large-scale code transformations.
The KeyNews take
Why it matters
OpenAI is doubling down on coding-specific models as a competitive moat. A dedicated code model signals the company believes general-purpose LLMs aren't enough to own the developer workflow—and it matters for anyone building on top of these APIs.
The key facts
4 to knowGPT-5.2-Codex: OpenAI's advanced coding model
Capabilities: long-horizon reasoning, large-scale code transformations
Enhanced cybersecurity capabilities included
Published Dec 18, 2025 from official OpenAI blog
Go to the source
OpenAI Blogopenai.com
Publisher excerpt: GPT-5.2-Codex is OpenAI’s most advanced coding model, offering long-horizon reasoning, large-scale code transformations, and enhanced cybersecurity capabilities.