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How Cursor built Composer 2.5 and became a frontier AI lab

How Cursor built Composer 2.5 and became a frontier AI labMindStudio

Cursor trained Composer 2.5 on Qwen K2.5 using novel RL techniques, competing with GPT 5.5 and Opus. The blog explains how the SpaceX acquisition transformed Cursor into a frontier AI lab.

15 hours ago