Our 229th episode with a summary and discussion of last week's big AI news!

Recorded on 12/19/2025

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

Read out our text newsletter and comment on the podcast at https://lastweekin.ai/

In this episode:

• Notable releases include OpenAI's GPT-5.2 Codex for advanced coding and Google's Gemini Free Flash for competitive AI application performance. Nvidia's new open-source Trion-3 models also showcase impressive benchmarks.
• Funding updates highlight Lovable's $330M Series B, valuing the AI coding startup at $6.6B, and Faya's $140M Series D for AI model hosting, valued at $4.5B.
• China makes significant strides in semiconductor technology with advances in EUV lithography machines, led by Huawei and SMIC, potentially disrupting global chip manufacturing dominance.
• Key safety and policy updates include OpenAI's GPT-5.2 system card focusing on biosecurity and cybersecurity risks, while Google partners with the US military to power a new AI platform with Gemini models.

Timestamps:

• (00:00:10 ) Intro / Banter
• (00:02:09 ) News Preview
• 
  
• Tools & Apps
• (00:02:56 ) Google launches Gemini 3 Flash, makes it the default model in the Gemini app | TechCrunch
• (00:10:13 ) ChatGPT launches an app store, lets developers know it's open for business | TechCrunch
• (00:13:35 ) Introducing GPT-5.2-Codex | OpenAI
• (00:19:23 ) Story about OpenAI release - GPT image 1.5
• (00:22:27 ) Meta partners with ElevenLabs to power AI audio across Instagram, Horizon - The Economic Times
• 
  
• Applications & Business
• (00:23:16 ) OpenAI to End Equity Vesting Period for Employees, WSJ Says
• (00:28:20 ) How China built its ‘Manhattan Project’ to rival the West in AI chips
• (00:36:47 ) China’s Huawei, SMIC Make Progress With Chips, Report Finds
• (00:41:03 ) OpenAI in Talks to Raise At Least $10 Billion From Amazon and Use Its AI Chips
• (00:43:32 ) Amazon has a new leader for its ‘AGI’ group as it plays catch-up on AI | The Verge
• (00:47:27 ) Broadcom reveals its mystery $10 billion customer is Anthropic
• (00:49:12 ) Vibe-coding startup Lovable raises $330M at a $6.6B valuation | TechCrunch
• (00:50:38 ) Fal nabs $140M in fresh funding led by Sequoia, tripling valuation to $4.5B | TechCrunch
• 
  
• Projects & Open Source
• (00:51:10 ) Nvidia Becomes a Major Model Maker With Nemotron 3 | WIRED
• (00:59:24 ) Meta introduces new SAM AI able to isolate and edit audio • The Register
• (00:59:54 ) [2512.14856] T5Gemma 2: Seeing, Reading, and Understanding Longer
• (01:03:10 ) Anthropic makes agent Skills an open standard - SiliconANGLE
• 
  
• Research & Advancements
• (01:03:47 ) Budget-Aware Tool-Use Enables Effective Agent Scaling
• (01:08:21 ) Rethinking Thinking Tokens: LLMs as Improvement Operators
• (01:10:50 ) What if AI capabilities suddenly accelerated in 2027? How would the world know?
• 
  
• Policy & Safety
• (01:12:58 ) Update to GPdfT-5 System Card: GPT-5.2
• (01:18:04 ) Neural Chameleons: Language Models Can Learn to Hide Their Thoughts from Unseen Activation Monitors
• (01:20:47 ) Async Control: Stress-testing Asynchronous Control Measures for LLM Agents
• (01:24:37 ) Google is powering a new US military AI platform | The Verge

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