diff --git a/backend/internal/service/openai_gateway_grok.go b/backend/internal/service/openai_gateway_grok.go
index 87899c1350..4d367c9aeb 100644
--- a/backend/internal/service/openai_gateway_grok.go
+++ b/backend/internal/service/openai_gateway_grok.go
@@ -1370,8 +1370,6 @@ func (s *OpenAIGatewayService) handleGrokAccountUpstreamError(ctx context.Contex
 		s.tempUnscheduleGrok(ctx, account, 30*time.Minute, "grok payment required")
 	case http.StatusForbidden:
 		s.tempUnscheduleGrok(ctx, account, 30*time.Minute, "grok access or entitlement denied")
-	case http.StatusMethodNotAllowed:
-		s.tempUnscheduleGrok(ctx, account, 30*time.Minute, "grok endpoint not supported (405)")
 	case http.StatusTooManyRequests:
 		// updateGrokUsageSnapshot installs rate-limit state for non-pool accounts.
 	default:
diff --git a/backend/internal/service/openai_gateway_grok_test.go b/backend/internal/service/openai_gateway_grok_test.go
index 30c25ba586..19942eae7d 100644
--- a/backend/internal/service/openai_gateway_grok_test.go
+++ b/backend/internal/service/openai_gateway_grok_test.go
@@ -2583,13 +2583,6 @@ func TestHandleGrokAccountUpstreamErrorTempUnschedulesNonRateLimitStates(t *test
 			wantMinCooldown: 2*time.Minute - time.Second,
 			wantMaxCooldown: 2*time.Minute + time.Second,
 		},
-		{
-			name:            "method not allowed",
-			status:          http.StatusMethodNotAllowed,
-			wantReason:      "grok endpoint not supported (405)",
-			wantMinCooldown: 30*time.Minute - time.Second,
-			wantMaxCooldown: 30*time.Minute + time.Second,
-		},
 	}
 
 	for _, tt := range tests {