GPT-5 System Card

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

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Announced: 07 Aug 2025 00:00 UTC
Detected: 03 Aug 2026 21:11 UTC (+361d after)

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