GPT-5.4 Thinking System Card
OpenAI Blog / 3/5/2026
Signals & Early TrendsIdeas & Deep AnalysisModels & Research
Key Points
- OpenAI published the GPT-5.4 Thinking System Card on March 5, 2026, describing the model's capabilities and safety measures.
- The card provides detailed information on GPT-5.4’s design, alignment efforts, and usage best practices.
- It aims to inform developers and users about responsible deployment and interaction with GPT-5.4.
- The document is part of OpenAI’s ongoing commitment to transparency and safe AI system disclosures.
- The Thinking System Card is accessible online with additional safety and alignment resources.
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