diff --git a/desktop/src/renderer/src/App.tsx b/desktop/src/renderer/src/App.tsx
index b660d77..365f291 100644
--- a/desktop/src/renderer/src/App.tsx
+++ b/desktop/src/renderer/src/App.tsx
@@ -483,6 +483,9 @@ export function App() {
       if (provider?.model) {
         form.setValue("model", provider.model, { shouldValidate: true });
       }
+      if (provider) {
+        form.setValue("apiBase", provider.apiBase, { shouldValidate: true });
+      }
       return;
     }
 
@@ -493,6 +496,9 @@ export function App() {
     if (provider?.model) {
       form.setValue("workerModel", provider.model, { shouldValidate: true });
     }
+    if (provider) {
+      form.setValue("workerApiBase", provider.apiBase, { shouldValidate: true });
+    }
   }
 
   function toggleSearchProvider(providerId: "brave" | "firecrawl") {
diff --git a/desktop/src/renderer/src/lib/install.ts b/desktop/src/renderer/src/lib/install.ts
index 4769365..c2ee1ab 100644
--- a/desktop/src/renderer/src/lib/install.ts
+++ b/desktop/src/renderer/src/lib/install.ts
@@ -7,15 +7,26 @@ export function isExistingSecret(value: string | undefined | null): boolean {
 }
 
 export const providers = [
-  { id: "openrouter", label: "OpenRouter", model: "anthropic/claude-sonnet-4" },
-  { id: "zai", label: "Z.AI", model: "glm-4.6" },
-  { id: "openai", label: "OpenAI", model: "gpt-5.2" },
-  { id: "anthropic", label: "Anthropic", model: "claude-sonnet-4-5" },
-  { id: "google", label: "Google Gemini", model: "gemini-2.5-pro" },
-  { id: "mistral", label: "Mistral", model: "mistral-large-latest" },
-  { id: "together", label: "Together AI", model: "meta-llama/Llama-3.3-70B-Instruct-Turbo" },
-  { id: "groq", label: "Groq", model: "llama-3.3-70b-versatile" },
-  { id: "custom", label: "Custom LiteLLM", model: "" },
+  {
+    id: "openrouter",
+    label: "OpenRouter",
+    model: "x-ai/grok-4.3",
+    apiBase: "https://openrouter.ai/api/v1",
+  },
+  { id: "zai", label: "Z.AI", model: "glm-5.1", apiBase: "https://api.z.ai/api/coding/paas/v4" },
+  { id: "openai", label: "OpenAI", model: "gpt-5.5", apiBase: "https://api.openai.com/v1" },
+  { id: "anthropic", label: "Anthropic", model: "claude-opus-4-7", apiBase: "https://api.anthropic.com" },
+  { id: "google", label: "Google Gemini", model: "gemini-3.1-pro-preview", apiBase: "" },
+  { id: "mistral", label: "Mistral", model: "mistral-medium-3-5+1", apiBase: "https://api.mistral.ai/v1" },
+  {
+    id: "together",
+    label: "Together AI",
+    model: "moonshotai/Kimi-K2.5",
+    apiBase: "https://api.together.xyz/v1",
+  },
+  { id: "groq", label: "Groq", model: "openai/gpt-oss-120b", apiBase: "https://api.groq.com/openai/v1" },
+  { id: "minimax", label: "Minimax", model: "MiniMax-M2.7", apiBase: "https://api.minimax.io/anthropic/v1" },
+  { id: "custom", label: "Custom LiteLLM", model: "", apiBase: "" },
 ] as const;
 
 export const searchProviders = [
@@ -151,12 +162,12 @@ export const defaultInstallValues: InstallForm = {
   whatsappMode: "separate",
   whatsappAllowedNumbers: "",
   providerId: "openrouter",
-  model: "anthropic/claude-sonnet-4",
+  model: "x-ai/grok-4.3",
   apiKey: "",
   apiBase: "",
   sameWorker: false,
   workerProviderId: "openrouter",
-  workerModel: "anthropic/claude-sonnet-4",
+  workerModel: "x-ai/grok-4.3",
   workerApiKey: "",
   workerApiBase: "",
   searchProvider: undefined,
diff --git a/src/octopal/infrastructure/config/settings.py b/src/octopal/infrastructure/config/settings.py
index 070c1c6..8333a76 100644
--- a/src/octopal/infrastructure/config/settings.py
+++ b/src/octopal/infrastructure/config/settings.py
@@ -48,7 +48,7 @@ class Settings(BaseSettings):
     # OpenRouter Settings (used via LiteLLM with openrouter/ model prefix)
     openrouter_api_key: str | None = Field(default=None, alias="OPENROUTER_API_KEY")
     openrouter_base_url: str = Field("https://openrouter.ai/api/v1", alias="OPENROUTER_BASE_URL")
-    openrouter_model: str = Field("anthropic/claude-sonnet-4", alias="OPENROUTER_MODEL")
+    openrouter_model: str = Field("x-ai/grok-4.3", alias="OPENROUTER_MODEL")
     openrouter_timeout: float = Field(120.0, alias="OPENROUTER_TIMEOUT")
 
     # Legacy ZAI Settings (used as defaults for LiteLLM)
@@ -58,7 +58,7 @@ class Settings(BaseSettings):
     zai_timeout_seconds: float = Field(45.0, alias="ZAI_TIMEOUT_SECONDS")
     zai_connect_timeout_seconds: float = Field(15.0, alias="ZAI_CONNECT_TIMEOUT_SECONDS")
     zai_accept_language: str = Field("en-US,en", alias="ZAI_ACCEPT_LANGUAGE")
-    zai_model: str = Field("glm-5", alias="ZAI_MODEL")
+    zai_model: str = Field("glm-5.1", alias="ZAI_MODEL")
 
     minimax_api_key: str | None = Field(default=None, alias="MINIMAX_API_KEY")
 
diff --git a/src/octopal/infrastructure/providers/catalog.py b/src/octopal/infrastructure/providers/catalog.py
index 1eeac4a..b13cac4 100644
--- a/src/octopal/infrastructure/providers/catalog.py
+++ b/src/octopal/infrastructure/providers/catalog.py
@@ -26,7 +26,7 @@ class ProviderCatalogEntry:
         id="openrouter",
         label="OpenRouter",
         description="Hosted model router with OpenRouter model ids.",
-        default_model="anthropic/claude-sonnet-4",
+        default_model="x-ai/grok-4.3",
         model_prefix="openrouter",
         always_prefix_model=True,
         default_api_base="https://openrouter.ai/api/v1",
@@ -38,7 +38,7 @@ class ProviderCatalogEntry:
         id="zai",
         label="Z.ai (Coding plan)",
         description="GLM and Coding Plan endpoints via OpenAI-compatible LiteLLM routing.",
-        default_model="glm-5",
+        default_model="glm-5.1",
         model_prefix="openai",
         default_api_base="https://api.z.ai/api/coding/paas/v4",
         api_key_label="Z.ai API key",
@@ -49,7 +49,7 @@ class ProviderCatalogEntry:
         id="openai",
         label="OpenAI",
         description="Direct OpenAI API access through LiteLLM.",
-        default_model="gpt-4.1-mini",
+        default_model="gpt-5.5",
         model_prefix="openai",
         default_api_base="https://api.openai.com/v1",
         api_key_label="OpenAI API key",
@@ -60,7 +60,7 @@ class ProviderCatalogEntry:
         id="anthropic",
         label="Anthropic",
         description="Direct Anthropic Messages API through LiteLLM.",
-        default_model="claude-sonnet-4-20250514",
+        default_model="claude-opus-4-7",
         model_prefix="anthropic",
         default_api_base="https://api.anthropic.com",
         api_key_label="Anthropic API key",
@@ -71,7 +71,7 @@ class ProviderCatalogEntry:
         id="google",
         label="Google Gemini",
         description="Gemini API via LiteLLM.",
-        default_model="gemini-2.0-flash",
+        default_model="gemini-3.1-pro-preview",
         model_prefix="gemini",
         default_api_base=None,
         supports_custom_base_url=False,
@@ -82,7 +82,7 @@ class ProviderCatalogEntry:
         id="mistral",
         label="Mistral AI",
         description="Hosted Mistral API.",
-        default_model="mistral-medium-latest",
+        default_model="mistral-medium-3-5+1",
         model_prefix="mistral",
         default_api_base="https://api.mistral.ai/v1",
         api_key_label="Mistral API key",
@@ -93,7 +93,7 @@ class ProviderCatalogEntry:
         id="together",
         label="Together AI",
         description="Hosted open-model access through Together AI.",
-        default_model="meta-llama/Llama-3.3-70B-Instruct-Turbo",
+        default_model="moonshotai/Kimi-K2.5",
         model_prefix="together_ai",
         default_api_base="https://api.together.xyz/v1",
         api_key_label="Together API key",
@@ -104,7 +104,7 @@ class ProviderCatalogEntry:
         id="groq",
         label="Groq",
         description="Fast hosted inference with OpenAI-compatible API surface.",
-        default_model="llama-3.3-70b-versatile",
+        default_model="openai/gpt-oss-120b",
         model_prefix="groq",
         default_api_base="https://api.groq.com/openai/v1",
         api_key_label="Groq API key",
@@ -127,7 +127,7 @@ class ProviderCatalogEntry:
         id="minimax",
         label="Minimax (Token plan)",
         description="MiniMax API (M2.5, M2.7, etc.) via LiteLLM.",
-        default_model="minimax-m2.5",
+        default_model="MiniMax-M2.7",
         model_prefix="minimax",
         default_api_base="https://api.minimax.io/anthropic/v1",
         api_key_label="Minimax API key",
@@ -138,7 +138,7 @@ class ProviderCatalogEntry:
         id="custom",
         label="Custom OpenAI-compatible",
         description="Any custom LiteLLM target with configurable base URL and model prefix.",
-        default_model="gpt-4.1-mini",
+        default_model="gpt-5.5",
         model_prefix="openai",
         default_api_base="http://localhost:8000/v1",
         requires_api_key=False,
diff --git a/tests/test_configure_llm.py b/tests/test_configure_llm.py
index ad4ebe8..e401f0d 100644
--- a/tests/test_configure_llm.py
+++ b/tests/test_configure_llm.py
@@ -15,7 +15,7 @@ def test_configure_llm_keeps_existing_custom_base_url_for_same_provider(monkeypa
     prompt_answers = iter(
         [
             "router-key",
-            "anthropic/claude-sonnet-4",
+            "x-ai/grok-4.3",
             "https://custom.router/v1",
         ]
     )
@@ -49,7 +49,7 @@ def fake_prompt_ask(message: str, default: str | None = None, password: bool = F
         if message == "Minimax API key":
             return "mini-key"
         if message == "Minimax model":
-            return "minimax-m2.5"
+            return "MiniMax-M2.7"
         if message == "Minimax base URL":
             captured_defaults["base_url"] = default or ""
             return default or ""
diff --git a/tests/test_litellm_profile_resolver.py b/tests/test_litellm_profile_resolver.py
index 6d78f56..0c1c241 100644
--- a/tests/test_litellm_profile_resolver.py
+++ b/tests/test_litellm_profile_resolver.py
@@ -24,11 +24,11 @@ def _base_settings(**overrides) -> Settings:
         "litellm_rate_limit_base_delay_seconds": 1.0,
         "litellm_rate_limit_max_delay_seconds": 30.0,
         "openrouter_api_key": None,
-        "openrouter_model": "anthropic/claude-sonnet-4",
+        "openrouter_model": "x-ai/grok-4.3",
         "openrouter_base_url": "https://openrouter.ai/api/v1",
         "openrouter_timeout": 30.0,
         "zai_api_key": None,
-        "zai_model": "glm-5",
+        "zai_model": "glm-5.1",
         "zai_base_url": "https://api.z.ai/api/paas/v4/",
         "zai_chat_path": "/chat/completions",
         "zai_timeout_seconds": 45.0,
@@ -69,7 +69,7 @@ def test_resolver_falls_back_to_legacy_openrouter_mode() -> None:
 
     assert profile.provider_id == "openrouter"
     assert profile.source == "legacy"
-    assert profile.model == "openrouter/anthropic/claude-sonnet-4"
+    assert profile.model == "openrouter/x-ai/grok-4.3"
     assert profile.api_key == "legacy-openrouter-key"
 
 
@@ -92,12 +92,12 @@ def test_resolver_supports_local_ollama_without_api_key() -> None:
 def test_worker_override_does_not_inherit_octo_unified_api_key_for_other_provider() -> None:
     settings = _base_settings(
         litellm_provider_id="zai",
-        litellm_model="glm-5",
+        litellm_model="glm-5.1",
         litellm_api_key="octo-zai-key",
         openrouter_api_key=None,
         config_obj=OctopalConfig(
-            llm=LLMConfig(provider_id="zai", model="glm-5", api_key="octo-zai-key"),
-            worker_llm_default=LLMConfig(provider_id="openrouter", model="anthropic/claude-sonnet-4"),
+            llm=LLMConfig(provider_id="zai", model="glm-5.1", api_key="octo-zai-key"),
+            worker_llm_default=LLMConfig(provider_id="openrouter", model="x-ai/grok-4.3"),
         ),
     )
 
diff --git a/tests/test_litellm_provider_payload_hardening.py b/tests/test_litellm_provider_payload_hardening.py
index 8568b05..a21d815 100644
--- a/tests/test_litellm_provider_payload_hardening.py
+++ b/tests/test_litellm_provider_payload_hardening.py
@@ -25,11 +25,11 @@ def _settings() -> Settings:
         litellm_drop_params=True,
         litellm_caching=False,
         openrouter_api_key=None,
-        openrouter_model="anthropic/claude-sonnet-4",
+        openrouter_model="x-ai/grok-4.3",
         openrouter_base_url="https://openrouter.ai/api/v1",
         openrouter_timeout=30.0,
         zai_api_key="z-test",
-        zai_model="glm-5",
+        zai_model="glm-5.1",
         zai_base_url="https://api.z.ai/api/paas/v4/",
         zai_chat_path="/chat/completions",
         zai_timeout_seconds=45.0,
diff --git a/tests/test_openrouter_provider.py b/tests/test_openrouter_provider.py
index 67edd42..891356c 100644
--- a/tests/test_openrouter_provider.py
+++ b/tests/test_openrouter_provider.py
@@ -25,11 +25,11 @@ def _settings(**overrides) -> Settings:
         "litellm_drop_params": True,
         "litellm_caching": False,
         "openrouter_api_key": "router-key",
-        "openrouter_model": "anthropic/claude-sonnet-4",
+        "openrouter_model": "x-ai/grok-4.3",
         "openrouter_base_url": "https://openrouter.ai/api/v1/",
         "openrouter_timeout": 30.0,
         "zai_api_key": None,
-        "zai_model": "glm-5",
+        "zai_model": "glm-5.1",
         "zai_base_url": "https://api.z.ai/api/paas/v4/",
         "zai_chat_path": "/chat/completions",
         "zai_timeout_seconds": 45.0,
@@ -131,7 +131,7 @@ def test_complete_posts_expected_payload(monkeypatch) -> None:
     assert call["base_url"] == "https://openrouter.ai/api/v1"
     assert call["path"] == "/chat/completions"
     assert call["headers"]["Authorization"] == "Bearer router-key"
-    assert call["json"]["model"] == "anthropic/claude-sonnet-4"
+    assert call["json"]["model"] == "x-ai/grok-4.3"
     assert call["json"]["temperature"] == 0.7
     assert call["json"]["messages"] == [{"role": "user", "content": "hello"}]
 
diff --git a/tests/test_runtime_mcp_integration.py b/tests/test_runtime_mcp_integration.py
index efd17bf..a30f6e3 100644
--- a/tests/test_runtime_mcp_integration.py
+++ b/tests/test_runtime_mcp_integration.py
@@ -769,8 +769,8 @@ def grant_capabilities(self, capabilities):
 
     settings = Settings(
         config_obj=OctopalConfig(
-            llm=LLMConfig(provider_id="zai", model="glm-5"),
-            worker_llm_default=LLMConfig(provider_id="openrouter", model="anthropic/claude-sonnet-4"),
+            llm=LLMConfig(provider_id="zai", model="glm-5.1"),
+            worker_llm_default=LLMConfig(provider_id="openrouter", model="x-ai/grok-4.3"),
         )
     )
     runtime = WorkerRuntime(
@@ -794,7 +794,7 @@ async def _fake_run(spec, approval_requester=None):
 
     spec = captured["spec"]
     assert spec.model is None
-    assert spec.llm_config.model == "anthropic/claude-sonnet-4"
+    assert spec.llm_config.model == "x-ai/grok-4.3"
 
 
 def test_runtime_rejects_task_tool_override_that_widens_template(tmp_path: Path) -> None:
diff --git a/tests/test_settings_config_sync.py b/tests/test_settings_config_sync.py
index b520984..b633e07 100644
--- a/tests/test_settings_config_sync.py
+++ b/tests/test_settings_config_sync.py
@@ -49,7 +49,7 @@ def test_load_settings_prefers_config_json_telegram_values(tmp_path, monkeypatch
                 },
                 "llm": {
                     "provider_id": "zai",
-                    "model": "glm-5",
+                    "model": "glm-5.1",
                 },
             }
         ),