diff --git a/config.example.yaml b/config.example.yaml
index 02e085b1..0ef2121f 100644
--- a/config.example.yaml
+++ b/config.example.yaml
@@ -127,3 +127,22 @@ ws-auth: false
 #          protocol: "codex" # restricts the rule to a specific protocol, options: openai, gemini, claude, codex
 #      params: # JSON path (gjson/sjson syntax) -> value
 #        "reasoning.effort": "high"
+
+# OAuth provider model blacklist
+#oauth-model-blacklist:
+#  gemini-cli:
+#    - "gemini-3-pro-preview"
+#  vertex:
+#    - "gemini-3-pro-preview"
+#  aistudio:
+#    - "gemini-3-pro-preview"
+#  antigravity:
+#    - "gemini-3-pro-preview"
+#  claude:
+#    - "claude-3-5-haiku-20241022"
+#  codex:
+#    - "gpt-5-codex-mini"
+#  qwen:
+#    - "vision-model"
+#  iflow:
+#    - "tstars2.0"
diff --git a/internal/config/config.go b/internal/config/config.go
index 0e1e3966..67fb9e99 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -83,6 +83,9 @@ type Config struct {
 
 	// Payload defines default and override rules for provider payload parameters.
 	Payload PayloadConfig `yaml:"payload" json:"payload"`
+
+	// OAuthModelBlacklist defines per-provider global model blacklists applied to OAuth/file-backed auth entries.
+	OAuthModelBlacklist map[string][]string `yaml:"oauth-model-blacklist,omitempty" json:"oauth-model-blacklist,omitempty"`
 }
 
 // TLSConfig holds HTTPS server settings.
diff --git a/internal/watcher/watcher.go b/internal/watcher/watcher.go
index 54789524..5f035718 100644
--- a/internal/watcher/watcher.go
+++ b/internal/watcher/watcher.go
@@ -472,6 +472,46 @@ func computeModelBlacklistHash(blacklist []string) string {
 	return hex.EncodeToString(sum[:])
 }
 
+func applyAuthModelBlacklistMeta(auth *coreauth.Auth, cfg *config.Config, perKey []string, authKind string) {
+	if auth == nil || cfg == nil {
+		return
+	}
+	authKindKey := strings.ToLower(strings.TrimSpace(authKind))
+	seen := make(map[string]struct{})
+	add := func(list []string) {
+		for _, entry := range list {
+			if trimmed := strings.TrimSpace(entry); trimmed != "" {
+				key := strings.ToLower(trimmed)
+				if _, exists := seen[key]; exists {
+					continue
+				}
+				seen[key] = struct{}{}
+			}
+		}
+	}
+	if authKindKey == "apikey" {
+		add(perKey)
+	} else if cfg.OAuthModelBlacklist != nil {
+		providerKey := strings.ToLower(strings.TrimSpace(auth.Provider))
+		add(cfg.OAuthModelBlacklist[providerKey])
+	}
+	combined := make([]string, 0, len(seen))
+	for k := range seen {
+		combined = append(combined, k)
+	}
+	sort.Strings(combined)
+	hash := computeModelBlacklistHash(combined)
+	if auth.Attributes == nil {
+		auth.Attributes = make(map[string]string)
+	}
+	if hash != "" {
+		auth.Attributes["model_blacklist_hash"] = hash
+	}
+	if authKind != "" {
+		auth.Attributes["auth_kind"] = authKind
+	}
+}
+
 // SetClients sets the file-based clients.
 // SetClients removed
 // SetAPIKeyClients removed
@@ -860,9 +900,6 @@ func (w *Watcher) SnapshotCoreAuths() []*coreauth.Auth {
 			if base != "" {
 				attrs["base_url"] = base
 			}
-			if hash := computeModelBlacklistHash(entry.ModelBlacklist); hash != "" {
-				attrs["model_blacklist_hash"] = hash
-			}
 			addConfigHeadersToAttrs(entry.Headers, attrs)
 			a := &coreauth.Auth{
 				ID:         id,
@@ -874,6 +911,7 @@ func (w *Watcher) SnapshotCoreAuths() []*coreauth.Auth {
 				CreatedAt:  now,
 				UpdatedAt:  now,
 			}
+			applyAuthModelBlacklistMeta(a, cfg, entry.ModelBlacklist, "apikey")
 			out = append(out, a)
 		}
 		// Claude API keys -> synthesize auths
@@ -895,9 +933,6 @@ func (w *Watcher) SnapshotCoreAuths() []*coreauth.Auth {
 			if hash := computeClaudeModelsHash(ck.Models); hash != "" {
 				attrs["models_hash"] = hash
 			}
-			if hash := computeModelBlacklistHash(ck.ModelBlacklist); hash != "" {
-				attrs["model_blacklist_hash"] = hash
-			}
 			addConfigHeadersToAttrs(ck.Headers, attrs)
 			proxyURL := strings.TrimSpace(ck.ProxyURL)
 			a := &coreauth.Auth{
@@ -910,6 +945,7 @@ func (w *Watcher) SnapshotCoreAuths() []*coreauth.Auth {
 				CreatedAt:  now,
 				UpdatedAt:  now,
 			}
+			applyAuthModelBlacklistMeta(a, cfg, ck.ModelBlacklist, "apikey")
 			out = append(out, a)
 		}
 		// Codex API keys -> synthesize auths
@@ -927,9 +963,6 @@ func (w *Watcher) SnapshotCoreAuths() []*coreauth.Auth {
 			if ck.BaseURL != "" {
 				attrs["base_url"] = ck.BaseURL
 			}
-			if hash := computeModelBlacklistHash(ck.ModelBlacklist); hash != "" {
-				attrs["model_blacklist_hash"] = hash
-			}
 			addConfigHeadersToAttrs(ck.Headers, attrs)
 			proxyURL := strings.TrimSpace(ck.ProxyURL)
 			a := &coreauth.Auth{
@@ -942,6 +975,7 @@ func (w *Watcher) SnapshotCoreAuths() []*coreauth.Auth {
 				CreatedAt:  now,
 				UpdatedAt:  now,
 			}
+			applyAuthModelBlacklistMeta(a, cfg, ck.ModelBlacklist, "apikey")
 			out = append(out, a)
 		}
 		for i := range cfg.OpenAICompatibility {
@@ -1102,8 +1136,12 @@ func (w *Watcher) SnapshotCoreAuths() []*coreauth.Auth {
 			CreatedAt: now,
 			UpdatedAt: now,
 		}
+		applyAuthModelBlacklistMeta(a, cfg, nil, "oauth")
 		if provider == "gemini-cli" {
 			if virtuals := synthesizeGeminiVirtualAuths(a, metadata, now); len(virtuals) > 0 {
+				for _, v := range virtuals {
+					applyAuthModelBlacklistMeta(v, cfg, nil, "oauth")
+				}
 				out = append(out, a)
 				out = append(out, virtuals...)
 				continue
diff --git a/sdk/cliproxy/service.go b/sdk/cliproxy/service.go
index 0405c6ae..4b6e70fc 100644
--- a/sdk/cliproxy/service.go
+++ b/sdk/cliproxy/service.go
@@ -617,6 +617,7 @@ func (s *Service) registerModelsForAuth(a *coreauth.Auth) {
 	if a == nil || a.ID == "" {
 		return
 	}
+	authKind := strings.ToLower(strings.TrimSpace(a.Attributes["auth_kind"]))
 	if a.Attributes != nil {
 		if v := strings.TrimSpace(a.Attributes["gemini_virtual_primary"]); strings.EqualFold(v, "true") {
 			GlobalModelRegistry().UnregisterClient(a.ID)
@@ -636,41 +637,57 @@ func (s *Service) registerModelsForAuth(a *coreauth.Auth) {
 	if compatDetected {
 		provider = "openai-compatibility"
 	}
+	blacklist := s.oauthBlacklist(provider, authKind)
 	var models []*ModelInfo
 	switch provider {
 	case "gemini":
 		models = registry.GetGeminiModels()
 		if entry := s.resolveConfigGeminiKey(a); entry != nil {
-			models = applyModelBlacklist(models, entry.ModelBlacklist)
+			if authKind == "apikey" {
+				blacklist = entry.ModelBlacklist
+			}
 		}
+		models = applyModelBlacklist(models, blacklist)
 	case "vertex":
 		// Vertex AI Gemini supports the same model identifiers as Gemini.
 		models = registry.GetGeminiVertexModels()
+		models = applyModelBlacklist(models, blacklist)
 	case "gemini-cli":
 		models = registry.GetGeminiCLIModels()
+		models = applyModelBlacklist(models, blacklist)
 	case "aistudio":
 		models = registry.GetAIStudioModels()
+		models = applyModelBlacklist(models, blacklist)
 	case "antigravity":
 		ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
 		models = executor.FetchAntigravityModels(ctx, a, s.cfg)
 		cancel()
+		models = applyModelBlacklist(models, blacklist)
 	case "claude":
 		models = registry.GetClaudeModels()
 		if entry := s.resolveConfigClaudeKey(a); entry != nil {
 			if len(entry.Models) > 0 {
 				models = buildClaudeConfigModels(entry)
 			}
-			models = applyModelBlacklist(models, entry.ModelBlacklist)
+			if authKind == "apikey" {
+				blacklist = entry.ModelBlacklist
+			}
 		}
+		models = applyModelBlacklist(models, blacklist)
 	case "codex":
 		models = registry.GetOpenAIModels()
 		if entry := s.resolveConfigCodexKey(a); entry != nil {
-			models = applyModelBlacklist(models, entry.ModelBlacklist)
+			if authKind == "apikey" {
+				blacklist = entry.ModelBlacklist
+			}
 		}
+		models = applyModelBlacklist(models, blacklist)
 	case "qwen":
 		models = registry.GetQwenModels()
+		models = applyModelBlacklist(models, blacklist)
 	case "iflow":
 		models = registry.GetIFlowModels()
+		models = applyModelBlacklist(models, blacklist)
 	default:
 		// Handle OpenAI-compatibility providers by name using config
 		if s.cfg != nil {
@@ -855,6 +872,19 @@ func (s *Service) resolveConfigCodexKey(auth *coreauth.Auth) *config.CodexKey {
 	return nil
 }
 
+func (s *Service) oauthBlacklist(provider, authKind string) []string {
+	cfg := s.cfg
+	if cfg == nil {
+		return nil
+	}
+	authKindKey := strings.ToLower(strings.TrimSpace(authKind))
+	providerKey := strings.ToLower(strings.TrimSpace(provider))
+	if authKindKey == "apikey" {
+		return nil
+	}
+	return cfg.OAuthModelBlacklist[providerKey]
+}
+
 func applyModelBlacklist(models []*ModelInfo, blacklist []string) []*ModelInfo {
 	if len(models) == 0 || len(blacklist) == 0 {
 		return models