feat(grok):add grok 4.7 support

backend/internal/service/billing_service.go

@@ -855,6 +855,19 @@ func (s *BillingService) initFallbackPricing() {
 		LongContextOutputMultiplier:   2,
 	}
 
+	// xAI Grok 4.7: $2 input / $0.50 cached input / $6 output below 200k;
+	// long-context rates are $4 / $1 / $12 (>=200k prompt tokens).
+	s.fallbackPrices["grok-4.7"] = &ModelPricing{
+		InputPricePerToken:            2e-6,
+		OutputPricePerToken:           6e-6,
+		CacheReadPricePerToken:        0.5e-6,
+		SupportsCacheBreakdown:        false,
+		LongContextInputThreshold:     200000,
+		LongContextThresholdInclusive: true,
+		LongContextInputMultiplier:    2,
+		LongContextOutputMultiplier:   2,
+	}
+
 	// xAI Grok 4.3: $1.25 input / $0.20 cached / $2.50 output below 200k;
 	// long-context rates are $2.50 / $0.40 / $5.
 	s.fallbackPrices["grok-4.3"] = &ModelPricing{
@@ -1128,6 +1141,8 @@ func (s *BillingService) getFallbackPricing(model string) *ModelPricing {
 	switch modelLower {
 	case "grok", "grok-latest", "grok-4.6", "grok-4.6-latest":
 		return s.fallbackPrices["grok-4.6"]
+	case "grok-4.7", "grok-4.7-latest":
+		return s.fallbackPrices["grok-4.7"]
 	case "grok-4.5", "grok-4.5-latest":
 		return s.fallbackPrices["grok-4.5"]
 	case "grok-3-mini":

backend/internal/service/billing_service_test.go

@@ -1169,6 +1169,25 @@ func TestGetModelPricing_Grok46OfficialFallback(t *testing.T) {
 	}
 }
 
+func TestGetModelPricing_Grok47OfficialFallback(t *testing.T) {
+	svc := newTestBillingService()
+
+	for _, model := range []string{"grok-4.7", "grok-4.7-latest"} {
+		model := model
+		t.Run(model, func(t *testing.T) {
+			pricing, err := svc.GetModelPricing(model)
+			require.NoError(t, err)
+			require.InDelta(t, 2e-6, pricing.InputPricePerToken, 1e-12)
+			require.InDelta(t, 6e-6, pricing.OutputPricePerToken, 1e-12)
+			require.InDelta(t, 0.5e-6, pricing.CacheReadPricePerToken, 1e-12)
+			require.Equal(t, 200000, pricing.LongContextInputThreshold)
+			require.InDelta(t, 2.0, pricing.LongContextInputMultiplier, 1e-12)
+			require.InDelta(t, 2.0, pricing.LongContextOutputMultiplier, 1e-12)
+			require.False(t, pricing.SupportsCacheBreakdown)
+		})
+	}
+}
+
 func TestGetModelPricing_GrokOfficialFamilyCards(t *testing.T) {
 	svc := newTestBillingService()
 	for _, tc := range []struct {

backend/internal/service/openai_codex_models_service.go

@@ -1267,6 +1267,7 @@ func isGrokCodexImageInputModel(model string) bool {
 	case "grok-4.3",
 		"grok-4.5",
 		"grok-4.6",
+		"grok-4.7",
 		"grok-build-0.1",
 		"grok-4.20-0309-reasoning",
 		"grok-4.20-0309-non-reasoning",

backend/internal/service/openai_gateway_grok.go

@@ -744,16 +744,18 @@ func normalizeGrokReasoningEffortValue(raw, model string) (string, bool) {
 }
 
 // GrokSupportsXHighReasoningEffort reports whether the model advertises and
-// forwards the xhigh reasoning effort (Grok 4.6 and its undated alias).
+// forwards the xhigh reasoning effort (Grok 4.6/4.7 and their aliases).
 func GrokSupportsXHighReasoningEffort(model string) bool {
 	model = strings.ToLower(xai.StripGrokProviderPrefix(strings.TrimSpace(model)))
-	return model == "grok-4.6" || model == "grok-4.6-latest"
+	return model == "grok-4.7" || model == "grok-4.7-latest" ||
+		model == "grok-4.6" || model == "grok-4.6-latest"
 }
 
 func grokSupportsReasoningEffort(model string) bool {
 	model = strings.ToLower(xai.StripGrokProviderPrefix(strings.TrimSpace(model)))
 	switch model {
 	case "grok-4.5", "grok-4.5-latest", "grok-4.6", "grok-4.6-latest",
+		"grok-4.7", "grok-4.7-latest",
 		"grok-4.3", "grok-4.3-latest",
 		"grok-3-mini", "grok-3-mini-fast", "grok-4.20-0309-reasoning",
 		"grok-4.20-reasoning", "grok-4.20-multi-agent-0309":

backend/internal/service/openai_gateway_grok_chat_bridge.go

@@ -498,7 +498,7 @@ func grokChatResponsesCacheIntentBody(body []byte) ([]byte, error) {
 
 func grokChatResponsesBridgeModel(model string) bool {
 	switch strings.ToLower(xai.StripGrokProviderPrefix(strings.TrimSpace(model))) {
-	case "grok-4.5", "grok-4.6", "grok-4.6-latest":
+	case "grok-4.5", "grok-4.6", "grok-4.6-latest", "grok-4.7", "grok-4.7-latest":
 		return true
 	default:
 		return false

backend/internal/service/opencode_go.go

@@ -27,6 +27,7 @@ const (
 // 供 /v1/models 在尚未同步上游列表时回退，以及账号白名单预填。
 func DefaultOpenCodeGoModelIDs() []string {
 	return []string{
+		"grok-4.7",
 		"grok-4.6",
 		"gpt-5.6-luna",
 		"glm-5.3-flash",

backend/internal/service/upstream_response_model.go

@@ -299,6 +299,8 @@ func canonicalGrokBuildRuntimeModel(model string) string {
 		return "grok-4.5-build"
 	case "grok-4.6", "grok-4.6-latest", "grok-4.6-build":
 		return "grok-4.6-build"
+	case "grok-4.7", "grok-4.7-latest", "grok-4.7-build":
+		return "grok-4.7-build"
 	default:
 		return ""
 	}