Code News Today — September 22, 2026

The world of code and artificial intelligence is moving at a breakneck pace, with several key developments making headlines today. On the infrastructure front, Cloudflare has announced that its Python Workers are now generally available, giving developers a powerful new tool for building scalable and efficient applications at the edge. This move has the potential to unlock a wide range of new use cases and applications, from real-time data processing to machine learning inference.

But as AI continues to advance, it's becoming clear that there are limits to its growth that have nothing to do with algorithms or software. The training and deployment of large AI models require massive amounts of power, water, and land, and as our headlines today highlight, these resources are becoming increasingly scarce. In response, researchers and developers are working to build more efficient and sustainable AI systems, from optimized tokenization libraries like tokenizers v1 to new standards for AI development that prioritize environmental sustainability. As we enter the next phase of AI growth, it's clear that building for efficiency and sustainability will be just as important as building for performance.

Today's signal:
• Cloudflare Python Workers are now generally available (simonwillison.net)
• AI can't outprompt a shortage of power, water, and land (theregister.com)
• Python Workers are now generally available (blog.cloudflare.com)
• Building standards for the next phase of AI (openai.com)
• tokenizers v1: encode, decode and scaling, measured (huggingface.co)