diff --git a/desc/inference/inference.api b/desc/inference/inference.api
index f6ac8568..cb67b4d8 100644
--- a/desc/inference/inference.api
+++ b/desc/inference/inference.api
@@ -79,10 +79,8 @@ type (
      TextToTextInferenceReq{
           TaskName string `form:"taskName"`
           TaskDesc string `form:"taskDesc"`
-          ModelName string `form:"modelName"`
           ModelType string `form:"modelType"`
-          AdapterId string `form:"adapterId"`
-          AiClusterIds []string `form:"aiClusterIds"`
+          InstanceId int64 `form:"instanceId"`
      }
      TextToTextInferenceResp{
 
diff --git a/internal/types/types.go b/internal/types/types.go
index 284d0383..4cbdd876 100644
--- a/internal/types/types.go
+++ b/internal/types/types.go
@@ -5976,12 +5976,10 @@ type InferenceResult struct {
 }
 
 type TextToTextInferenceReq struct {
-	TaskName     string   `form:"taskName"`
-	TaskDesc     string   `form:"taskDesc"`
-	ModelName    string   `form:"modelName"`
-	ModelType    string   `form:"modelType"`
-	AdapterId    string   `form:"adapterId"`
-	AiClusterIds []string `form:"aiClusterIds"`
+	TaskName   string `form:"taskName"`
+	TaskDesc   string `form:"taskDesc"`
+	ModelType  string `form:"modelType"`
+	InstanceId int64  `form:"instanceId"`
 }
 
 type TextToTextInferenceResp struct {