Kimi K3-256k: Mastering Model Switching and Context Limits

I explain how to navigate the new Kimi K3 and Kimi K2.7 Code models, detailing their specific context windows and speed tiers. You will learn why switching models invalidates your context cache and how to avoid unnecessary token costs by starting fresh sessions. I also clarify common errors like 401 responses and why HighSpeed mode might not feel faster when tool execution dominates the workflow.