What It Really Takes to Train a Frontier LLM

# What It Really Takes to Train a Frontier LLM

“This piece walks the full stack: what "from the ground up" actually means, then the four scarce inputs (compute, power, data, talent), a total-cost model, and a decision framework for who should build what.”

https://www.varunk.me/blog/what-it-takes-to-train-a-frontier-llm