diff --git a/backend/internal/service/pricing_service_test.go b/backend/internal/service/pricing_service_test.go
index 7db756533e..1a933aec10 100644
--- a/backend/internal/service/pricing_service_test.go
+++ b/backend/internal/service/pricing_service_test.go
@@ -531,7 +531,7 @@ func TestDefaultPricingIncludesGemini36FlashRates(t *testing.T) {
 	}
 }
 
-func TestDefaultPricingIncludesCodexAutoReview(t *testing.T) {
+func TestDefaultPricingUsesCurrentCodexAutoReviewBaseRates(t *testing.T) {
 	data, err := os.ReadFile(filepath.Join("..", "..", "resources", "model-pricing", "model_prices_and_context_window.json"))
 	require.NoError(t, err)
 
@@ -542,9 +542,19 @@ func TestDefaultPricingIncludesCodexAutoReview(t *testing.T) {
 
 	got := svc.GetModelPricing("codex-auto-review")
 	require.NotNil(t, got)
-	require.InDelta(t, 5e-6, got.InputCostPerToken, 1e-12)
-	require.InDelta(t, 3e-5, got.OutputCostPerToken, 1e-12)
-	require.InDelta(t, 5e-7, got.CacheReadInputTokenCost, 1e-12)
+	require.InDelta(t, 0.2e-6, got.InputCostPerToken, 1e-12)
+	require.InDelta(t, 1.2e-6, got.OutputCostPerToken, 1e-12)
+	require.InDelta(t, 0.02e-6, got.CacheReadInputTokenCost, 1e-12)
+
+	// Auto-review is an internal Codex model. Do not infer public GPT-5.6 API
+	// service-tier, cache-write, or long-context pricing without an upstream
+	// usage contract for this dedicated model.
+	require.Zero(t, got.InputCostPerTokenPriority)
+	require.Zero(t, got.OutputCostPerTokenPriority)
+	require.Zero(t, got.CacheReadInputTokenCostPriority)
+	require.Zero(t, got.CacheCreationInputTokenCost)
+	require.Zero(t, got.CacheCreationInputTokenCostPriority)
+	require.Zero(t, got.LongContextInputTokenThreshold)
 }
 
 func TestGetModelPricing_Gpt54MiniUsesDedicatedStaticFallbackWhenRemoteMissing(t *testing.T) {
diff --git a/backend/resources/model-pricing/model_prices_and_context_window.json b/backend/resources/model-pricing/model_prices_and_context_window.json
index 36cfc2f6b1..7dc445e3fc 100644
--- a/backend/resources/model-pricing/model_prices_and_context_window.json
+++ b/backend/resources/model-pricing/model_prices_and_context_window.json
@@ -709,25 +709,14 @@
     "tool_use_system_prompt_tokens": 346
   },
   "codex-auto-review": {
-    "cache_read_input_token_cost": 5e-07,
-    "cache_read_input_token_cost_above_272k_tokens": 1e-06,
-    "cache_read_input_token_cost_flex": 2.5e-07,
-    "cache_read_input_token_cost_priority": 1e-06,
-    "input_cost_per_token": 5e-06,
-    "input_cost_per_token_above_272k_tokens": 1e-05,
-    "input_cost_per_token_batches": 2.5e-06,
-    "input_cost_per_token_flex": 2.5e-06,
-    "input_cost_per_token_priority": 1e-05,
+    "cache_read_input_token_cost": 2e-08,
+    "input_cost_per_token": 2e-07,
     "litellm_provider": "openai",
     "max_input_tokens": 1050000,
     "max_output_tokens": 128000,
     "max_tokens": 128000,
     "mode": "chat",
-    "output_cost_per_token": 3e-05,
-    "output_cost_per_token_above_272k_tokens": 4.5e-05,
-    "output_cost_per_token_batches": 1.5e-05,
-    "output_cost_per_token_flex": 1.5e-05,
-    "output_cost_per_token_priority": 6e-05,
+    "output_cost_per_token": 1.2e-06,
     "supported_endpoints": [
       "/v1/chat/completions",
       "/v1/batch",