#infrastructure
2 articles
01
·★ MEMBER·PAPER·17 min read
Paper Walkthrough: Miles v0.1 — Anatomy of a Post-Training Stack Built to Survive Production
A read-through of Miles, a full-stack system for agentic RL post-training of frontier MoE models: how it hunts down the numerical drift between the rollout engine and the trainer, and what a 744B model actually measured on 64 GPUs.
02
·Cloud & Ops·★ MEMBER·10 min read
The Economics of GPU Cloud — Rent, Buy, or Commit
The same GPU carries four prices at once. Put on-demand, committed, spot, and owned hardware on a single equation: the break-even utilization, the true cost of spot once interruptions are priced in, the commitment burn rate, and the line items that never appear on the rate card.