GPT-5 System Card

The GPT-5 system card outlines the architecture of a unified model routing system that incorporates various versions of GPT-5, including gpt-5-main, gpt-5-thinking, and a lightweight variant, gpt-5-thinking-nano. This routing system enables optimized performance tailored to specific tasks, enhancing response speed and intelligence. For practitioners, this modular approach allows for greater flexibility in deployment and fine-tuning based on application needs.