Introducing Composer 2.5
Summary
Cursor announces Composer 2.5, a substantial upgrade to their training stack with targeted textual feedback, more synthetic tasks, and advanced distributed training (Sharded Muon and dual mesh HSDP). The post highlights improvements in model intelligence, usability, and collaboration with SpaceXAI, along with pricing and open-source lineage via Moonshot's Kimi K2.5.