18
← Back to the timeline
Daily archive

AI news on December 18, 2025 · Thursday

10 stories — deduplicated across sources, ranked by significance, every source cited.
★ Top story · IndustryDec 18

Evaluating chain-of-thought monitorability

OpenAI introduces a new framework and evaluation suite for chain-of-thought monitorability, covering 13 evaluations across 24 environments. Our findings show that monitoring a model’s internal reasoning is far more effective than monitoring outputs alone, offering a promising path toward scalable control as AI systems grow more capable.

Introducing GPT-5.2-Codex

Models·OpenAI Blog·Dec 18
O

Introducing GPT-5.2-Codex

Models·OpenAI Blog·Dec 18
O

Updating our Model Spec with teen protections

Products·OpenAI Blog·Dec 18
O

AI literacy resources for teens and parents

Other·OpenAI Blog·Dec 18
O

Project Vend: Phase two

Other·Anthropic·Dec 18
A

Falcon LLM - Cybernews

Other·TII Falcon News·Dec 18
T