OpenAI's GPT-5.2 and GPT-5.3 Codex Trained on NVIDIA Infrastructure

Jul 11, 2026

OpenAI launched GPT-5.2, described as its most capable model series for professional knowledge work, trained and deployed on NVIDIA Hopper and GB200 NVL72 systems. In February, OpenAI released GPT-5.3 Codex, its first agentic coding model that helped build itself.

Why it matters: This highlights the continued reliance of leading AI developers on NVIDIA's hardware for training and deploying advanced models.