diff --git a/messages/en-US.json b/messages/en-US.json
index e7b7f3c12..25a94eb32 100644
--- a/messages/en-US.json
+++ b/messages/en-US.json
@@ -1769,14 +1769,14 @@
     "aiProviderTypeOpenRouter": "OpenRouter",
     "aiProviderTypeVercelAiGateway": "Vercel AI Gateway",
     "aiProviderTypeCustom": "Custom",
-    "aiProviderTypeOpenaiDescription": "OpenAI API with default upstream URL",
-    "aiProviderTypeAnthropicDescription": "Anthropic API with default upstream URL",
-    "aiProviderTypeGoogleGeminiDescription": "Google Gemini generateContent API",
-    "aiProviderTypeVertexAiDescription": "Google Vertex AI; upstream URL required",
-    "aiProviderTypeBedrockDescription": "Amazon Bedrock Runtime",
-    "aiProviderTypeMicrosoftFoundryDescription": "Microsoft Foundry; upstream URL required",
+    "aiProviderTypeOpenaiDescription": "OpenAI API",
+    "aiProviderTypeAnthropicDescription": "Anthropic API",
+    "aiProviderTypeGoogleGeminiDescription": "Google Gemini API",
+    "aiProviderTypeVertexAiDescription": "Google Vertex AI API",
+    "aiProviderTypeBedrockDescription": "Amazon Bedrock Runtime API",
+    "aiProviderTypeMicrosoftFoundryDescription": "Microsoft Foundry API",
     "aiProviderTypeOpenRouterDescription": "OpenRouter API",
-    "aiProviderTypeVercelAiGatewayDescription": "Vercel AI Gateway",
+    "aiProviderTypeVercelAiGatewayDescription": "Vercel AI Gateway API",
     "aiProviderTypeCustomDescription": "Bring your own endpoint or route via site targets",
     "aiProviderUpstreamUrl": "Upstream URL",
     "aiProviderUpstreamUrlDescription": "Base URL for the provider API",
diff --git a/src/lib/aiProviderDefaults.ts b/src/lib/aiProviderDefaults.ts
index 96fbb5e18..31499a19d 100644
--- a/src/lib/aiProviderDefaults.ts
+++ b/src/lib/aiProviderDefaults.ts
@@ -56,7 +56,7 @@ export const AI_PROVIDER_DEFAULTS: Record<
         capabilities: ["google_generate_content", "google_raw_predict"]
     },
     bedrock: {
-        upstreamUrl: "https://bedrock-runtime.us-east-1.amazonaws.com",
+        upstreamUrl: null,
         authType: "bearer",
         capabilities: ["bedrock_converse"]
     },