The Zhitong Finance App learned that in the early morning of August 19, Zhi Spectrum (02513) officially launched the API for the next-generation base model GLM-5.3. The model excels at complex coding, defensive cybersecurity, and long-range tasks. It scored 60 points in the Artificial Analysis Intelligence Index and entered the global leading-edge model capability range. It is at the same level as closed-source flagships such as Claude Fable 5 and GPT-5.6 Sol, and ranks first among open source models along with Kimi K3.

It is worth noting that GLM-5.3 has reached the level of cutting-edge models with smaller parameter scale, higher parameter efficiency, and lower call costs, and under the same intelligence, its single-task cost is the lowest among cutting-edge flagship models, significantly advancing the “intelligence-cost” Pareto frontier, further expanding the application boundaries of cutting-edge intelligence.

The model has been integrated into smart spectrum products such as zCode and GLM Coding Plan. The API pricing is consistent with GLM-5.2, and the full model weights are planned to be open sourced responsibly next Friday. The capital market is concerned about whether it can rely on APIs, programming tools, and enterprise services to accelerate the transformation of model capabilities into large-scale use and commercial revenue by developers, and promote domestic large-scale model competition from capability breakthroughs to application implementation.

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