Gavin Baker, Atreides Management CIO, says Composer 2.5 achieved Pareto dominance over GPT-5.5 medium on CursorBench 3.1

Composer 2.5 being Pareto dominant in coding per CursorBench is important. This is after only a few weeks of supplemental training and/or RL in the Colossus 2 cluster.   The 1.5 trillion parameter version of Grok will likely be a much better base model than Kimi. We shall see.