#210 - Claude 4, Google I/O 2025, OpenAI+io, Gemini Diffusion

Our 210th episode with a summary and discussion of last week's big AI news! Recorded on 05/23/2025

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

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In this episode:

• Google's Gemini diffusion technology showcases significant improvements in speed and efficiency for generating text, potentially revolutionizing the auto-regressive generation paradigm.

• Anthropic activates AI Safety Level 3 protections for Claude Opus 4, implementing robust measures such as bug bounties, synthetic jailbreak data, and preliminary egress bandwidth controls to mitigate bio-risk threats.

• OpenAI responds to the California Attorney General, refuting claims by the not-for-private-gain coalition and defending their controversial restructuring plans amidst ongoing criticism.

• Mistral delays the release of its Llama 4 Behemoth model due to training challenges, while Meta faces similar obstacles in rolling out its large-scale AI models, signaling difficulties in reaching frontier level performance.

Timestamps + Links:

• (00:00:00) Intro / Banter

• (00:01:43) News Preview

• Tools & Apps (00:02:58) Anthropic’s new Claude 4 AI models can reason over many steps • (00:09:58) Google Unveils A.I. Chatbot, Signaling a New Era for Search • (00:14:04) Google rolls out Project Mariner, its web-browsing AI agent • (00:16:40) Veo 3 can generate videos — and soundtracks to go along with them • (00:21:26) Imagen 4 is Google’s newest AI image generator • (00:23:15) Google Meet is getting real-time speech translation • (00:25:36) Google’s new Jules AI agent will help developers fix buggy code • (00:26:43) GitHub’s new AI coding agent can fix bugs for you • (00:28:50) Mistral’s new Devstral model was designed for coding • Applications & Business (00:29:53) OpenAI Unites With Jony Ive in $6.5 Billion Deal to Create A.I. Devices • (00:36:10) OpenAI’s planned data center in Abu Dhabi would be bigger than Monaco • (00:41:18) LM Arena, the organization behind popular AI leaderboards, lands $100M • (00:45:21) Nvidia CEO says next chip after H20 for China won't be from Hopper series • (00:46:39) Google’s Gemini AI app has 400M monthly active users • (00:51:15) AI Servers: End demand intact, but rising gap between upstream build and system production (2025.5.18) • Projects & Open Source (00:53:46) Meta Is Delaying the Rollout of Its Flagship AI Model • Research & Advancements (00:57:53) Gemini Diffusion • (01:03:07) Chain-of-Model Learning for Language Model • (01:09:16) Seek in the Dark: Reasoning via Test-Time Instance-Level Policy Gradient in Latent Space • (01:15:38) Two Experts Are All You Need for Steering Thinking: Reinforcing Cognitive Effort in MoE Reasoning Models Without Additional Training • (01:20:16) Lessons from Defending Gemini Against Indirect Prompt Injections • (01:23:35) How Fast Can Algorithms Advance Capabilities? • (01:30:20) Reinforcement Learning Finetunes Small Subnetworks in Large Language Models • Policy & Safety

• (01:31:12) Exclusive: What OpenAI Told California's Attorney General • (01:38:25) Activating AI Safety Level 3 Protections