Introducing GPT-5.2-Codex
What changed
GPT-5.2-Codex is OpenAI’s most advanced coding model, offering long-horizon reasoning, large-scale code transformations, and enhanced cybersecurity capabilities.
Why it matters
A concrete addition to Practical AI: Tools, Models & Frameworks: it changes what's available to builders today rather than being general commentary.
How it compares
Related prior coverage to compare against:
- Introducing GPT-5.3-Codex
- Building more with GPT-5.1-Codex-Max
- Introducing Codex
Sources
- Introducing GPT-5.2-Codex (openai-blog)primary