Artificial Inteligence feed for Thursday, December 18, 2025

• Guided learning lets “untrainable” neural networks realize their potential
• Evaluating chain-of-thought monitorability
• AI literacy resources for teens and parents
• Updating our Model Spec with teen protections
• Deepening our collaboration with the U.S. Department of Energy
• A new way to increase the capabilities of large language models
• Tokenization in Transformers v5: Simpler, Clearer, and More Modular
• Addendum to GPT-5.2 System Card: GPT-5.2-Codex
• Introducing GPT-5.2-Codex