Our 215th episode with a summary and discussion of last week's big AI news! Recorded on 07/04/2025

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:

Cloudflare's new AI data scraper blocking feature, its potential implications, and technical challenges
Meta's aggressive recruitment for its Super Intelligence Labs division is covered, highlighting key hires from OpenAI and other leaders in the field
Anthropic loses significant talent to Cursor, with details on their new economic futures program focusing on AI's impact on the labor market
Notable open-source AI model releases from Baidu and Tencent are also discussed, including their performance metrics and potential applications.

Timestamps + Links:

Tools & Apps

Applications & Business

Projects & Open Source

Research & Advancements

(01:06:21) Wider or Deeper? Scaling LLM Inference-Time Compute with Adaptive Branching Tree Search
(01:13:07) The Automated LLM Speedrunning Benchmark: Reproducing NanoGPT Improvements
(01:18:04) Claude 4 Opus and Sonnet reach 50%-time-horizon point estimates of about 80 and 65 minutes, respectively
(01:21:37) Performance Prediction for Large Systems via Text-to-Text Regression
(01:25:38) Does Math Reasoning Improve General LLM Capabilities? Understanding Transferability of LLM Reasoning
(01:26:33) Correlated Errors in Large Language Models

Policy & Safety

#215 - Runway games, Meta Superintelligence, ERNIE 4.5, Adaptive Tree Search

Last Week in AI