#Cursor

Cursor confirmed on August 14, 2026 that it has been acquired by SpaceX. The announcement runs thirteen sentences: it talks about GPUs, cheaper models, and the horizon, and says nothing about your code. We separate what's in a primary source from what's press-only (including the $60 billion), show what actually changes in the editor (Grok 4.6 in the house pool, Claude hidden by default, the Router choosing for you), and close with a checklist for anyone who depends on Cursor in production.

You send a one-line question and /usage reports a whole day's worth of consumption. Saving tokens in a coding assistant has nothing to do with prompt size: it's about prefix caching. How it works in Claude Code, Codex, and Cursor, the seven actions that invalidate it without you noticing, how to measure it with cache_read vs cache_creation, and eight levers to stretch the session.