diff --git a/README.md b/README.md
index 31a3017..e07d864 100644
--- a/README.md
+++ b/README.md
@@ -108,6 +108,7 @@ Models share a common quota.
 - [thudm/glm-z1-32b:free](https://openrouter.ai/thudm/glm-z1-32b:free)
 - [tngtech/deepseek-r1t-chimera:free](https://openrouter.ai/tngtech/deepseek-r1t-chimera:free)
 - [tngtech/deepseek-r1t2-chimera:free](https://openrouter.ai/tngtech/deepseek-r1t2-chimera:free)
+- [z-ai/glm-4.5-air:free](https://openrouter.ai/z-ai/glm-4.5-air:free)
 
 ### [Google AI Studio](https://aistudio.google.com)