Posts
All the articles I've posted.
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Training Composer 2: How Cursor Builds a Coding Agent Model
A structured walkthrough of Sasha Rush's Training Composer 2 workshop: why Cursor chose Kimi K2.5, how continued pretraining and long-horizon RL fit together, what CursorBench measures, and where Composer is headed.
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Leetcode Problems
Leetcode grinding.
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Hybrid Attention and MLA: The Tradeoff
A side-by-side dive into Xiaomi MiMo's hybrid sliding-window/global attention and DeepSeek's Multi-head Latent Attention. The two answer the same question — how to make attention affordable at long context — with very different bets, and those bets shape everything from training infra to KV cache size.
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Kimi K2.5: Joint Text–Vision Training and the Agent Swarm
A walkthrough of two ideas behind Kimi K2.5: how joint text–vision pre-training and RL make each modality help the other, and how Agent Swarm replaces sequential tool use with a learned parallel orchestrator.