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#252 - GPT 5.6, Grok 4.5, Nemotron-Labs-Diffusion, AI 2040

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#252 - GPT 5.6, Grok 4.5, Nemotron-Labs-Diffusion, AI 2040

Last Week in AI

21 HOURS AGO
Last Week in AI

Last Week in AI

21 HOURS AGO
OverviewShownoteHighlightsTranscriptChaptersPins

Shownote

Our 252th episode with a summary and discussion of last week's big AI news! Recorded on 07/11/2026 Hosted by Andrey Kurenkov and Jeremie Harris Feel free to email us your questions and feedback at andreyvkurenkov@gmail.com and/or hello@gladstone.ai Rea...

Highlights

This episode covers a busy week in AI, featuring the rollout of GPT-5.6, new competitive models from SpaceXAI and Meta, and significant policy and safety discussions. The hosts analyze the implications of these developments, including pricing wars, regulatory inconsistencies, and emerging risks from Chinese open-source models.
00:10
Jeremie will cover more details on recent AI news
01:34
The episode covers GPT-5.6, Grok 4.5, Muse Spark 1.1
08:12
Undisclosed internal deployments pose the same risks as external ones.
18:48
Token prices are dropping significantly
23:12
Meta's Cybench score jumped from 65% to 93%.
27:22
One model is cheaper than Grok 4.5
34:41
Safety institutes are crucial for detecting sleeper agents.
43:58
Intense competition in cloud computing for AI workloads
46:35
Increased compute supply could drive down token costs
54:12
6x faster per forward pass than comparable models
58:00
Pre-training sets priors before dual-track activation.
1:07:35
Model forced thinking about suppressed concepts
1:09:30
Middle layers form a shared reasoning space
1:12:58
China may end open-source AI releases.

Chapters

Intro / Banter
00:00
News Preview
01:33
Tools & Apps
OpenAI rolls out GPT-5.6 after government greenlight — and announces ‘ChatGPT Work’ | The Verge + The new ChatGPT superapp takes aim at Claude Desktop + OpenAI is shutting down its Atlas web browser + OpenAI’s latest AI model likely has similar cyber vulnerabilities to one that led to U.S. export controls on Anthropic’s Fable, British agency says
02:03
SpaceXAI, Cursor Launch Grok 4.5 AI Model for Finance, Legal Applications - Bloomberg + SpaceXAI’s Grok 4.5 Undercuts Anthropic and OpenAI on Coding Agent Pricing
15:41
Meta says its new AI model is ready to compete on coding | The Verge
20:29
Introducing Muse Image and Muse Video + https://www.nytimes.com/2026/07/10/technology/meta-muse-images-instagram-removal.html
27:21
Chinese AI models gain ground with U.S. companies as costs surge + Anthropic and OpenAI Face a New Threat from China
29:01
Applications & Business
Meta Is Planning a Cloud Business to Sell AI Computing Power - Bloomberg
35:21
US energy regulator sets ultimatum for data centres + Grid operator PJM orders emergency steps to avoid large-scale US power outages
46:32
Projects & Open Source
Nemotron-Labs-Diffusion: A Tri-Mode Language Model Unifying Autoregressive, Diffusion, and Self-Speculation Decoding
51:40
Tencent Releases Hy3: An Open 295B Mixture-of-Experts (MoE) Model with 21B Active Parameters and 256K Context - MarkTechPost
57:44
Policy & Safety
Verbalizable Representations Form a Global Workspace in Language Models
58:30
Beijing is looking at curbing overseas access to China's top AI models, sources say
1:09:29
The ex-OpenAI employee behind ‘AI 2027’ recommends a rosier path - The Washington Post + AI 2040: Plan A
1:12:53

Transcript

Andrey Kurenkov: Hello, and welcome to the Last Week in AI podcast, where you can hear and chat about what's going on with AI. As usual, in this episode, we will summarize and discuss some of last week's most interesting AI news. I'm one of your regular co...