diff --git a/backend/internal/service/billing_service.go b/backend/internal/service/billing_service.go
index af29d614..a523001c 100644
--- a/backend/internal/service/billing_service.go
+++ b/backend/internal/service/billing_service.go
@@ -139,9 +139,9 @@ func (s *BillingService) initFallbackPricing() {
 
 	// Gemini 3.1 Pro
 	s.fallbackPrices["gemini-3.1-pro"] = &ModelPricing{
-		InputPricePerToken:         2e-6,  // $2 per MTok
-		OutputPricePerToken:        12e-6, // $12 per MTok
-		CacheCreationPricePerToken: 2e-6,  // $2 per MTok
+		InputPricePerToken:         2e-6,   // $2 per MTok
+		OutputPricePerToken:        12e-6,  // $12 per MTok
+		CacheCreationPricePerToken: 2e-6,   // $2 per MTok
 		CacheReadPricePerToken:     0.2e-6, // $0.20 per MTok
 		SupportsCacheBreakdown:     false,
 	}