IntroductionFrom the second half of 2025 to early 2026, domestic AI large model manufacturers have intensively focused on the AI programming sector. They have successively launched Coding Plan subscription packages targeting developers, replacing the traditional token-based billing model with fixed monthly fees. This shift has significantly lowered the usage threshold for AI-assisted programming.However, the market is filled with diverse packages featuring vastly different pricing structures, quota mechanisms, model support, and hidden pitfa...