Grab My Custom Prompt for This Week’s AI News + 10 Minutes on the 7 Stories That Mattered

Source: Nate’s Newsletter Date: 2025-10-18 URL: https://natesnewsletter.substack.com/p/i-read-17-hours-of-ai-news-this-week

Summary

Nate’s weekly digest for the week of October 18, 2025 covers seven stories: Google using AI to generate and validate cancer therapy hypotheses; OpenAI-Broadcom committing $350–500B for 10-gigawatt custom chips through 2029; Anthropic launching Claude Skills for modular agent customization; Microsoft Copilot Actions enabling autonomous workflow automation; Nvidia’s DGX Spark ($3,999) bringing datacenter-class inference to desktop; Andrej Karpathy’s nanoChat letting users train a ChatGPT-class model from scratch for $100; and a piece on running 300K+ lines of code via parallel AI agents. The custom prompt maps stories to individual roles and constraints to generate concrete action steps rather than observation.

Implications

• The OpenAI-Broadcom $350–500B chip commitment and Nvidia DGX Spark in the same week signal the simultaneous scaling of cloud compute and democratized local compute—two trajectories tracked separately in the threads board (TurboQuant, local model tracking).
• Claude Skills debut here predates the October 23 signal on Claude Skills adoption problems—watching those two signals together shows how fast the gap between announcement and real-world friction can close (five days).
• The Karpathy nanoChat item ($100 to train a model from scratch) is an early data point for the commoditization of pretraining itself, relevant to the open-weight thread and local-first architecture priorities.