Recognize reviewed OpenRouter free route pricing

docs/release-control/v6/internal/subsystems/ai-runtime.md

@@ -6272,7 +6272,10 @@ than silently borrowing a direct-provider family price. Reviewed OpenRouter
 routes use exact model IDs and model-specific review dates from the public
 OpenRouter Models API; aliases, fast variants, routers, and other unreviewed
 routes remain unknown and therefore fail any non-zero qualification cost
-budget until their actual route price is explicitly recorded. Live scoring
+budget until their actual route price is explicitly recorded. An exact
+OpenRouter `:free` route may be recorded at zero only after that route's public
+catalog entry is reviewed; the suffix alone never makes other free aliases
+known. Live scoring
 uses the provider resolved by Patrol readiness, even when the configured
 OpenRouter model is an unprefixed slash route such as
 `anthropic/claude-sonnet-5`; scorer replay persists and reuses that resolved

internal/ai/cost/pricing.go

@@ -63,12 +63,13 @@ var providerPrices = map[string][]modelPrice{
 	},
 	"openrouter": {
 		// OpenRouter model-catalog list prices, checked from the public Models API
-		// (https://openrouter.ai/api/v1/model/:author/:slug) on 2026-07-14.
+		// (https://openrouter.ai/api/v1/models) on the per-route review date.
 		// Keep these route-specific: OpenRouter aliases, variants, and provider
 		// routing can have different prices and must remain unknown until reviewed.
 		flatPriceAsOf("anthropic/claude-opus-4.8", 5.00, 25.00, "2026-07-14"),
 		flatPriceAsOf("anthropic/claude-sonnet-5", 2.00, 10.00, "2026-07-14"),
 		flatPriceAsOf("deepseek/deepseek-v4-flash", 0.09, 0.18, "2026-07-14"),
+		flatPriceAsOf("nvidia/nemotron-3-super-120b-a12b:free", 0, 0, "2026-08-14"),
 	},
 	"gemini": {
 		// Gemini Developer API standard paid-tier pricing, checked from

internal/ai/cost/store_extended_test.go

@@ -137,6 +137,23 @@ func TestEstimateUSD_OllamaFree(t *testing.T) {
 	}
 }
 
+func TestEstimateUSD_ReviewedOpenRouterFreeRoute(t *testing.T) {
+	usd, ok, price := EstimateUSD("openrouter", "nvidia/nemotron-3-super-120b-a12b:free", 1_000_000, 1_000_000)
+	if !ok {
+		t.Fatal("reviewed OpenRouter free-route pricing should be known")
+	}
+	if usd != 0 || price.InputUSDPerMTok != 0 || price.OutputUSDPerMTok != 0 {
+		t.Fatalf("reviewed OpenRouter free route should estimate $0, got usd=%f price=%+v", usd, price)
+	}
+	if price.AsOf != "2026-08-14" {
+		t.Fatalf("reviewed OpenRouter free-route date = %q, want 2026-08-14", price.AsOf)
+	}
+
+	if _, known, _ := EstimateUSD("openrouter", "nvidia/nemotron-3.5-lightning:free", 1_000, 1_000); known {
+		t.Fatal("an unreviewed OpenRouter free route must remain unknown")
+	}
+}
+
 func TestEstimateUSD_AnthropicModels(t *testing.T) {
 	tests := []struct {
 		model string