Our 228th episode with a summary and discussion of last week’s big AI news!
Recorded on 12/12/2025
Hosted by Andrey Kurenkov and Jeremie Harris
Feel free to email us your questions and feedback at contact@lastweekinai.com and/or hello@gladstone.ai
In this episode:
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OpenAI’s latest model GPT-5.2 demonstrates improved performance and enhanced multi-modal capabilities but comes with increased costs and a different knowledge cutoff date.
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Disney invests $1 billion in OpenAI to generate Disney character content, creating unique licensing agreements across characters from Marvel, Pixar, and Star Wars franchises.
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The U.S. government imposes new AI chip export rules involving security reviews, while simultaneously moving to prevent states from independently regulating AI.
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DeepMind releases a paper outlining the challenges and findings in scaling multi-agent systems, highlighting the complexities of tool coordination and task performance.
Timestamps:
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(00:00:00) Intro / Banter
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(00:01:19) News Preview
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Tools & Apps
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(00:01:58) GPT-5.2 is OpenAI’s latest move in the agentic AI battle | The Verge
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(00:08:48) Runway releases its first world model, adds native audio to latest video model | TechCrunch
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(00:11:51) Google says it will link to more sources in AI Mode | The Verge
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(00:12:24) ChatGPT can now use Adobe apps to edit your photos and PDFs for free | The Verge
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(00:13:05) Tencent releases Hunyuan 2.0 with 406B parameters
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Applications & Business
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(00:16:15) China set to limit access to Nvidia’s H200 chips despite Trump export approval
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(00:21:02) Disney investing $1 billion in OpenAI, will allow characters on Sora
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(00:24:48) Unconventional AI confirms its massive $475M seed round
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(00:29:06) Slack CEO Denise Dresser to join OpenAI as chief revenue officer | TechCrunch
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(00:31:18) The state of enterprise AI
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Projects & Open Source
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(00:33:49) [2512.10791] The FACTS Leaderboard: A Comprehensive Benchmark for Large Language Model Factuality
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(00:36:27) Claude 4.5 Opus’ Soul Document
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Research & Advancements
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(00:43:49) [2512.08296] Towards a Science of Scaling Agent Systems
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(00:48:43) Evaluating Gemini Robotics Policies in a Veo World Simulator
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(00:52:10) Guided Self-Evolving LLMs with Minimal Human Supervision
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(00:56:08) Martingale Score: An Unsupervised Metric for Bayesian Rationality in LLM Reasoning
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(01:00:39) [2512.07783] On the Interplay of Pre-Training, Mid-Training, and RL on Reasoning Language Models
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(01:04:42) Stabilizing Reinforcement Learning with LLMs: Formulation and Practices
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(01:09:42) Google’s AI unit DeepMind announces UK ‘automated research lab’
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Policy & Safety
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(01:10:28) Trump Moves to Stop States From Regulating AI With a New Executive Order – The New York Times
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(01:13:54) [2512.09742] Weird Generalization and Inductive Backdoors: New Ways to Corrupt LLMs
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(01:17:57) Forecasting AI Time Horizon Under Compute Slowdowns
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(01:20:46) AI Security Institute focuses on AI measurements and evaluations
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(01:21:16) Nvidia AI Chips to Undergo Unusual U.S. Security Review Before Export to China
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(01:22:01) U.S. Authorities Shut Down Major China-Linked AI Tech Smuggling Network
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Synthetic Media & Art
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(01:24:01) RSL 1.0 has arrived, allowing publishers to ask AI companies pay to scrape content | The Verge
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