AI Summary

Z.ai's GLM-5.2 model has outperformed GPT-5.5 on multiple long-horizon coding benchmarks, achieving this at a significantly lower cost. The key advantage of GLM-5.2 lies in its open-weights architecture, which allows for unrestricted access to its core weights under an MIT open-source license.

AI summaries can be wrong sometimes—always verify important details using the source article.