diff --git a/src-tauri/Cargo.lock b/src-tauri/Cargo.lock
index 12123f63c..7660bd74f 100644
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@@ -3367,7 +3367,7 @@ dependencies = [
 
 [[package]]
 name = "proxycast"
-version = "0.13.0"
+version = "0.14.0"
 dependencies = [
  "anyhow",
  "async-stream",
diff --git a/src/components/clients/ProviderForm.tsx b/src/components/clients/ProviderForm.tsx
index 8045d86c7..0cda51dae 100644
--- a/src/components/clients/ProviderForm.tsx
+++ b/src/components/clients/ProviderForm.tsx
@@ -315,7 +315,7 @@ export function ProviderForm({
       return {
         apiKey: "",
         baseUrl: "",
-        primaryModel: "claude-sonnet-4-20250514",
+        primaryModel: "",
         haikuModel: "",
         sonnetModel: "",
         opusModel: "",
@@ -328,7 +328,7 @@ export function ProviderForm({
       return {
         apiKey: "",
         baseUrl: "",
-        primaryModel: "claude-sonnet-4-20250514",
+        primaryModel: "",
         haikuModel: "",
         sonnetModel: "",
         opusModel: "",
@@ -337,7 +337,7 @@ export function ProviderForm({
     return {
       apiKey: env.ANTHROPIC_API_KEY || env.ANTHROPIC_AUTH_TOKEN || "",
       baseUrl: env.ANTHROPIC_BASE_URL || "",
-      primaryModel: env.ANTHROPIC_MODEL || "claude-sonnet-4-20250514",
+      primaryModel: env.ANTHROPIC_MODEL || "",
       haikuModel: env.ANTHROPIC_DEFAULT_HAIKU_MODEL || "",
       sonnetModel: env.ANTHROPIC_DEFAULT_SONNET_MODEL || "",
       opusModel: env.ANTHROPIC_DEFAULT_OPUS_MODEL || "",
diff --git a/src/components/switch/ProviderForm.tsx b/src/components/switch/ProviderForm.tsx
index a1f783768..542e50e16 100644
--- a/src/components/switch/ProviderForm.tsx
+++ b/src/components/switch/ProviderForm.tsx
@@ -287,7 +287,7 @@ export function ProviderForm({
       return {
         apiKey: "",
         baseUrl: "",
-        primaryModel: "claude-sonnet-4-20250514",
+        primaryModel: "",
         haikuModel: "",
         sonnetModel: "",
         opusModel: "",
@@ -300,7 +300,7 @@ export function ProviderForm({
       return {
         apiKey: "",
         baseUrl: "",
-        primaryModel: "claude-sonnet-4-20250514",
+        primaryModel: "",
         haikuModel: "",
         sonnetModel: "",
         opusModel: "",
@@ -309,7 +309,7 @@ export function ProviderForm({
     return {
       apiKey: env.ANTHROPIC_API_KEY || env.ANTHROPIC_AUTH_TOKEN || "",
       baseUrl: env.ANTHROPIC_BASE_URL || "",
-      primaryModel: env.ANTHROPIC_MODEL || "claude-sonnet-4-20250514",
+      primaryModel: env.ANTHROPIC_MODEL || "",
       haikuModel: env.ANTHROPIC_DEFAULT_HAIKU_MODEL || "",
       sonnetModel: env.ANTHROPIC_DEFAULT_SONNET_MODEL || "",
       opusModel: env.ANTHROPIC_DEFAULT_OPUS_MODEL || "",