diff --git a/src/api.ts b/src/api.ts
index 3b2fd57..557792a 100644
--- a/src/api.ts
+++ b/src/api.ts
@@ -119,6 +119,7 @@ export interface ChatHistoryResp {
 }
 
 export interface AiModel {
+  model_id: string;
   model_name: string;
   icon: string;
   model_ratio: number;
diff --git a/src/pages/AgentEditor/components/CapabilitySettings.tsx b/src/pages/AgentEditor/components/CapabilitySettings.tsx
index 4be65aa..cc24fc4 100644
--- a/src/pages/AgentEditor/components/CapabilitySettings.tsx
+++ b/src/pages/AgentEditor/components/CapabilitySettings.tsx
@@ -153,7 +153,7 @@ export default function CapabilitySettings({
                 className="mb-0"
                 getValueProps={(value) => ({ value: parseModelSelections(value) })}
                 normalize={(value) =>
-                  Array.isArray(value) ? value.map((item) => String(item).trim()).filter(Boolean).join(', ') : ''
+                  Array.isArray(value) ? value.map((item) => String(item).trim()).filter(Boolean).join(',') : ''
                 }
               >
                 <ModelCheckboxDropdown models={models} />
diff --git a/src/pages/AgentEditor/components/ModelCheckboxDropdown.tsx b/src/pages/AgentEditor/components/ModelCheckboxDropdown.tsx
index b911757..7b0a320 100644
--- a/src/pages/AgentEditor/components/ModelCheckboxDropdown.tsx
+++ b/src/pages/AgentEditor/components/ModelCheckboxDropdown.tsx
@@ -30,7 +30,7 @@ export default function ModelCheckboxDropdown({ value = [], onChange, models }:
               const inputPrice = 2 * m.model_ratio;
               const outputPrice = inputPrice * m.completion_ratio;
               return (
-                <Checkbox key={m.model_name} value={m.model_name} className="agent-model-checkbox-item">
+                <Checkbox key={m.model_id} value={m.model_id} className="agent-model-checkbox-item">
                   <div className="agent-model-checkbox-content">
                     <div className="agent-model-checkbox-meta">
                       <img
diff --git a/src/pages/AgentEditor/hooks/useAgentEditor.ts b/src/pages/AgentEditor/hooks/useAgentEditor.ts
index b52fe7b..e1e7fab 100644
--- a/src/pages/AgentEditor/hooks/useAgentEditor.ts
+++ b/src/pages/AgentEditor/hooks/useAgentEditor.ts
@@ -163,7 +163,10 @@ export function useAgentEditor({ id, isNew, form, message, navigate }: UseAgentE
       Object.keys(values).forEach((key) => {
         const formValue = (values as any)[key];
         const originalValue = (agent as any)?.[key];
-        if (formValue !== originalValue) {
+        // 特殊处理 model 字段：如果是数组，用逗号拼接成字符串
+        if (key === 'model' && Array.isArray(formValue)) {
+          changedFields[key] = formValue.join(',');
+        } else if (formValue !== originalValue) {
           changedFields[key] = formValue;
         }
       });