From the source
OpenAI publishes the GPT-5 system card, detailing a unified model routing system that uses multiple model variants (gpt-5-main, gpt-5-thinking, gpt-5-thinking-nano) for different tasks and developer use cases.
From the source
This GPT-5 system card explains how a unified model routing system powers fast and smart responses using gpt-5-main, gpt-5-thinking, and lightweight versions like gpt-5-thinking-nano, optimized for different tasks and developer use.
openai.com
