Zhipu AI Offers Free Night Coding with GLM Plan

Zhipu AI announced a special night-time offer for its GLM Coding Plan, running until September 20. From 11 PM to 9 AM Beijing time each day, all paid users can use the GLM-5.3-Flash model through Zhipu's official coding tool ZCode with zero quota consumption. When using other agents, quota usage is doubled. The discount applies automatically without manual activation, including weekends and holidays.

GLM-5.3-Flash is the first native multimodal model in the GLM-5 series, supporting a 1 million token context window and processing text, images, and video. Previously appearing anonymously as "Ox Alpha" on OpenRouter, it now tops the platform's leaderboard with over double the usage of DeepSeek. Scoring 57 on the AA Intelligence Index, it ranks among top global models, excelling in code generation, understanding, and bug fixing, with notable improvements in office tasks, finance, and legal work.