Zhipu said the GLM-5.3 API is live. The model is optimized for complex coding, defensive cybersecurity and long-horizon tasks. GLM-5.3 has been integrated with ZCode and included in the GLM Coding Plan. API access is open and pricing remains unchange

2026-08-19

Zhipu said the GLM-5.3 API is live. The model is optimized for complex coding, defensive cybersecurity and long-horizon tasks. GLM-5.3 has been integrated with ZCode and included in the GLM Coding Plan. API access is open and pricing remains unchanged from GLM-5.2. Model weights will be open-sourced next Friday.