Pierce and Richard cover the news that Yann LeCunn is planning to depart Meta to focus on world models, Cursor 2.0 and their new home trained Composer coding model, Kimi K2 has great generalization performance for an open model but is lagging on code, Microsoft creates a super data center across 700 miles, and Anthropic reports the first hacking campaign orchestrated by AI.

Further reading:
https://arxiv.org/abs/2509.14252
https://www.digit.in/features/general/meta-chief-ai-scientist-yann-lecun-thinks-llms-are-a-waste-of-time.html
https://cursor.com/blog/composer
https://arxiv.org/abs/2507.20534
https://www.anthropic.com/news/disrupting-AI-espionage