Global AI Coding Tools Update

AI Coding Tools Weekly: Copilot billing overhaul, Codex hits 4M users, Grok Build enters the terminal war

This week: GitHub Copilot shifts to usage-based AI Credits billing on June 1; Codex CLI reaches 4M weekly users with mobile preview; Grok Build launches as a terminal-native coding agent; Windsurf silently removes free-tier model access; Cursor reprices Bugbot and adds cloud agent environments; plus a CVE in Claude Code and surging GitHub Trending activity in agent frameworks.