OpenAI published a revised Model Spec on October 29, 2026, structured around five values: faithfulness to human intent, harm minimization, honesty and transparency, human agency, and care. The document now replaces “the assistant” with “GPT” and adds explicit principles concerning user agency, social norms, and human oversight. OpenAI also removed most detailed style rules so that responses can adapt more closely to context and user feedback. For developers, these values provide a clearer framework for anticipating model behavior in ambiguous situations, while another revision is likely as AI systems become more autonomous.
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