diff --git a/src/index.ts b/src/index.ts
index 5e35043..8170b93 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -12,6 +12,7 @@ import { cors } from 'hono/cors'
 import { moonshot } from './llm/moonshot'
 import { lingyiwanwu } from './llm/lingyiwanwu'
 import { groq } from './llm/groq'
+import { auzreOpenAI } from './llm/azure'
 
 interface Bindings {
   API_KEY: string
@@ -28,6 +29,7 @@ function getModels(env: Record<string, string>) {
     moonshot(env),
     lingyiwanwu(env),
     groq(env),
+    auzreOpenAI(env),
   ].filter((it) => it.requiredEnv.every((it) => it in env))
 }
 
diff --git a/src/llm/azure.ts b/src/llm/azure.ts
index f5176c7..814c355 100644
--- a/src/llm/azure.ts
+++ b/src/llm/azure.ts
@@ -26,7 +26,7 @@ export function auzreOpenAI(env: Record<string, string>) {
     'AZURE_API_VERSION',
     'AZURE_DEPLOYMENT_MODELS',
   ]
-  r.supportModels = env.AZURE_DEPLOYMENT_MODELS.split(',').map((it) => {
+  r.supportModels = (env.AZURE_DEPLOYMENT_MODELS ?? '').split(',').map((it) => {
     if (it.includes(':')) {
       const [model, deployment] = it.split(':')
       map[model] = deployment