diff --git a/app/lib/.server/llm/provider.ts b/app/lib/.server/llm/provider.ts
index c668c8ef5..ea1814af3 100644
--- a/app/lib/.server/llm/provider.ts
+++ b/app/lib/.server/llm/provider.ts
@@ -37,11 +37,11 @@ export function modelForProvider(provider: ModelProvider, modelChoice: string |
     }
 
     if (modelChoice === 'claude-sonnet-4-6' && provider === 'Bedrock') {
-      return 'anthropic.claude-sonnet-4-6';
+      return 'us.anthropic.claude-sonnet-4-6';
     }
 
     if (modelChoice === 'claude-sonnet-4-5' && provider === 'Bedrock') {
-      return 'anthropic.claude-sonnet-4-5-20250929-v1:0';
+      return 'us.anthropic.claude-sonnet-4-5-20250929-v1:0';
     }
 
     if (modelChoice === 'gpt-5') {
@@ -54,7 +54,7 @@ export function modelForProvider(provider: ModelProvider, modelChoice: string |
     case 'Anthropic':
       return getEnv('ANTHROPIC_MODEL') || 'claude-sonnet-4-6';
     case 'Bedrock':
-      return getEnv('AMAZON_BEDROCK_MODEL') || 'anthropic.claude-sonnet-4-6';
+      return getEnv('AMAZON_BEDROCK_MODEL') || 'us.anthropic.claude-sonnet-4-6';
     case 'OpenAI':
       return getEnv('OPENAI_MODEL') || 'gpt-4.1';
     case 'XAI':