OpenAI

Similar preprints — Semantic Scholar

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• Open Character Training: Shaping the Persona of AI Assistants through Constitutional AI

  Character training—fine-tuning open-weights LLMs to internalize specific personas at a depth that survives adversarial pressure—proves substantially more effective than either system-prompt constraini

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  Behavioral defaults in Qwen3-8B (Q8B) and gpt-oss-20b (G20B) track their training norms with systematic fidelity: all nine agentic traits are natural in both models, and clinician defaults align with