Introduction: Navigating the Coding Plan MazeFrom late 2025 through early 2026, China's major AI model providers intensified their focus on the AI programming sector, launching Coding Plan subscription packages targeting developers. These plans replace traditional token-based billing with fixed monthly fees, dramatically lowering barriers to AI-assisted programming adoption. However, the marketplace has become a confusing labyrinth of pricing structures, quota mechanisms, and model support variations — with numerous billing traps awaiting un...