The GPT 5.5 system card provides a detailed look at how OpenAI designs, evaluates, and deploys its advanced AI systems with a focus on safety and performance. It describes a unified architecture that combines fast response models with deeper reasoning models, managed by a routing system that selects the best approach for each task.
The document highlights improvements in reducing hallucinations, better instruction following, and stronger safeguards against harmful use.
It also explains risk assessment processes, monitoring systems, and layered defenses used to control high risk capabilities, showing how OpenAI balances innovation with responsible deployment of powerful AI systems.
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