diff --git a/frontend/src/app/admin/settings/page.tsx b/frontend/src/app/admin/settings/page.tsx
index fa49755..1e7e4b9 100644
--- a/frontend/src/app/admin/settings/page.tsx
+++ b/frontend/src/app/admin/settings/page.tsx
@@ -75,9 +75,9 @@ const defaultConfig: SettingsConfig = {
   openrouter_premium: { enabled: false, api_key: "", model: "openai/gpt-4o-mini" },
   zai: { enabled: false, api_key: "", base_url: "https://api.x.ai/v1", model: "grok-2-1212" },
   smtp: { enabled: false, host: "", port: 587, username: "", password: "", from_email: "", use_tls: true },
-  fallback_chain: "google,deepl,openai,ollama,openrouter,openrouter_premium,zai",
-  fallback_chain_classic: "google,deepl",
-  fallback_chain_llm: "ollama,openai,openrouter,zai",
+  fallback_chain: "google,google_cloud,deepl,openrouter,openrouter_premium,openai,deepseek,zai",
+  fallback_chain_classic: "google,google_cloud,deepl",
+  fallback_chain_llm: "openrouter,openrouter_premium,openai,deepseek,zai",
 };
 
 const defaultEnvInfo: EnvInfo = {
@@ -627,7 +627,7 @@ export default function AdminSettingsPage() {
               <Input
                 value={config.fallback_chain_llm}
                 onChange={(e) => setConfig((prev) => ({ ...prev, fallback_chain_llm: e.target.value }))}
-                placeholder="ollama,openai"
+                placeholder="openrouter,openai,deepseek,zai"
               />
             </div>
           </CardContent>
diff --git a/routes/admin_routes.py b/routes/admin_routes.py
index 16c062e..75cb80d 100644
--- a/routes/admin_routes.py
+++ b/routes/admin_routes.py
@@ -837,9 +837,9 @@ class SettingsConfig(BaseModel):
     openrouter_premium: ProviderSettings = ProviderSettings()  # "Traduction IA Premium"
     zai: ProviderSettings = ProviderSettings()
     smtp: SmtpSettings = SmtpSettings()
-    fallback_chain: str = "google,google_cloud,deepl,openai,ollama,openrouter,openrouter_premium,zai"
-    fallback_chain_classic: str = "google,deepl"
-    fallback_chain_llm: str = "openrouter,openrouter_premium,openai,zai,ollama"
+    fallback_chain: str = "google,google_cloud,deepl,openrouter,openrouter_premium,openai,deepseek,zai"
+    fallback_chain_classic: str = "google,google_cloud,deepl"
+    fallback_chain_llm: str = "openrouter,openrouter_premium,openai,deepseek,zai"
 
 
 def load_settings() -> SettingsConfig:
diff --git a/services/providers/config.py b/services/providers/config.py
index 86af18a..0769827 100644
--- a/services/providers/config.py
+++ b/services/providers/config.py
@@ -120,23 +120,23 @@ class ProvidersConfig:
     FALLBACK_CHAIN: List[str] = [
         name.strip()
         for name in os.getenv(
-            "PROVIDER_FALLBACK_CHAIN", "google,deepl,deepseek,minimax,openai,ollama,openrouter"
+            "PROVIDER_FALLBACK_CHAIN", "google,google_cloud,deepl,openrouter,openrouter_premium,openai,deepseek,zai"
         ).split(",")
         if name.strip()
     ]
 
     # Mode-specific fallback chains
-    # Classic mode: Google Translate -> DeepL
+    # Classic mode: Google Translate -> Google Cloud -> DeepL
     FALLBACK_CHAIN_CLASSIC: List[str] = [
         name.strip()
-        for name in os.getenv("FALLBACK_CHAIN_CLASSIC", "google,deepl").split(",")
+        for name in os.getenv("FALLBACK_CHAIN_CLASSIC", "google,google_cloud,deepl").split(",")
         if name.strip()
     ]
 
-    # LLM mode: Ollama (local) -> OpenAI (cloud)
+    # LLM mode: cloud providers in order of cost/quality (no Ollama by default)
     FALLBACK_CHAIN_LLM: List[str] = [
         name.strip()
-        for name in os.getenv("FALLBACK_CHAIN_LLM", "ollama,openai").split(",")
+        for name in os.getenv("FALLBACK_CHAIN_LLM", "openrouter,openrouter_premium,openai,deepseek,zai").split(",")
         if name.strip()
     ]