diff --git a/README.md b/README.md
index dcba8d8..9395f89 100644
--- a/README.md
+++ b/README.md
@@ -68,7 +68,7 @@ huggingface免科学上网[在线体验](https://huggingface.co/spaces/qingxu98/
 <img src="https://user-images.githubusercontent.com/96192199/226935232-6b6a73ce-8900-4aee-93f9-733c7e6fef53.png" width="700" >
 </div>
 
-- 多种大语言模型混合调用（ChatGLM + OpenAI-GPT3.5 + API2D-GPT4 [v3.1分支](https://github.com/binary-husky/chatgpt_academic/tree/v3.1)测试中）
+- 多种大语言模型混合调用（ChatGLM + OpenAI-GPT3.5 + [API2D-GPT4](https://api2d.com/) [v3.1分支](https://github.com/binary-husky/chatgpt_academic/tree/v3.1)测试中）
 <div align="center">
 <img src="https://user-images.githubusercontent.com/96192199/232537274-deca0563-7aa6-4b5d-94a2-b7c453c47794.png" width="700" >
 </div>