diff --git a/backend/internal/handler/admin/usage_handler.go b/backend/internal/handler/admin/usage_handler.go
index 11a4aeb8f6..a7e0156d18 100644
--- a/backend/internal/handler/admin/usage_handler.go
+++ b/backend/internal/handler/admin/usage_handler.go
@@ -172,18 +172,19 @@ func (h *UsageHandler) List(c *gin.Context) {
 		SortOrder: c.DefaultQuery("sort_order", "desc"),
 	}
 	filters := usagestats.UsageLogFilters{
-		UserID:      userID,
-		APIKeyID:    apiKeyID,
-		AccountID:   accountID,
-		GroupID:     groupID,
-		Model:       model,
-		RequestType: requestType,
-		Stream:      stream,
-		BillingType: billingType,
-		BillingMode: billingMode,
-		StartTime:   startTime,
-		EndTime:     endTime,
-		ExactTotal:  exactTotal,
+		UserID:            userID,
+		APIKeyID:          apiKeyID,
+		AccountID:         accountID,
+		GroupID:           groupID,
+		Model:             model,
+		ModelFilterSource: usagestats.ModelSourceRequested,
+		RequestType:       requestType,
+		Stream:            stream,
+		BillingType:       billingType,
+		BillingMode:       billingMode,
+		StartTime:         startTime,
+		EndTime:           endTime,
+		ExactTotal:        exactTotal,
 	}
 
 	records, result, err := h.usageService.ListWithFilters(c.Request.Context(), params, filters)
@@ -312,17 +313,18 @@ func (h *UsageHandler) Stats(c *gin.Context) {
 
 	// Build filters and call GetStatsWithFilters
 	filters := usagestats.UsageLogFilters{
-		UserID:      userID,
-		APIKeyID:    apiKeyID,
-		AccountID:   accountID,
-		GroupID:     groupID,
-		Model:       model,
-		RequestType: requestType,
-		Stream:      stream,
-		BillingType: billingType,
-		BillingMode: billingMode,
-		StartTime:   &startTime,
-		EndTime:     &endTime,
+		UserID:            userID,
+		APIKeyID:          apiKeyID,
+		AccountID:         accountID,
+		GroupID:           groupID,
+		Model:             model,
+		ModelFilterSource: usagestats.ModelSourceRequested,
+		RequestType:       requestType,
+		Stream:            stream,
+		BillingType:       billingType,
+		BillingMode:       billingMode,
+		StartTime:         &startTime,
+		EndTime:           &endTime,
 	}
 
 	var stats *usagestats.UsageStats
diff --git a/backend/internal/handler/admin/usage_handler_request_type_test.go b/backend/internal/handler/admin/usage_handler_request_type_test.go
index 882cbe9362..bb4d43b4b2 100644
--- a/backend/internal/handler/admin/usage_handler_request_type_test.go
+++ b/backend/internal/handler/admin/usage_handler_request_type_test.go
@@ -60,6 +60,19 @@ func TestAdminUsageListRequestTypePriority(t *testing.T) {
 	require.Nil(t, repo.listFilters.Stream)
 }
 
+func TestAdminUsageListUsesRequestedModelForDisplayModelFilter(t *testing.T) {
+	repo := &adminUsageRepoCapture{}
+	router := newAdminUsageRequestTypeTestRouter(repo)
+
+	req := httptest.NewRequest(http.MethodGet, "/admin/usage?model=grok-imagine-video-1.5", nil)
+	rec := httptest.NewRecorder()
+	router.ServeHTTP(rec, req)
+
+	require.Equal(t, http.StatusOK, rec.Code)
+	require.Equal(t, "grok-imagine-video-1.5", repo.listFilters.Model)
+	require.Equal(t, usagestats.ModelSourceRequested, repo.listFilters.ModelFilterSource)
+}
+
 func TestAdminUsageListInvalidRequestType(t *testing.T) {
 	repo := &adminUsageRepoCapture{}
 	router := newAdminUsageRequestTypeTestRouter(repo)
@@ -119,6 +132,19 @@ func TestAdminUsageStatsRequestTypePriority(t *testing.T) {
 	require.Nil(t, repo.statsFilters.Stream)
 }
 
+func TestAdminUsageStatsUsesRequestedModelForDisplayModelFilter(t *testing.T) {
+	repo := &adminUsageRepoCapture{}
+	router := newAdminUsageRequestTypeTestRouter(repo)
+
+	req := httptest.NewRequest(http.MethodGet, "/admin/usage/stats?model=grok-imagine-video-1.5", nil)
+	rec := httptest.NewRecorder()
+	router.ServeHTTP(rec, req)
+
+	require.Equal(t, http.StatusOK, rec.Code)
+	require.Equal(t, "grok-imagine-video-1.5", repo.statsFilters.Model)
+	require.Equal(t, usagestats.ModelSourceRequested, repo.statsFilters.ModelFilterSource)
+}
+
 func TestAdminUsageStatsInvalidRequestType(t *testing.T) {
 	repo := &adminUsageRepoCapture{}
 	router := newAdminUsageRequestTypeTestRouter(repo)