diff --git a/demos/use_cases/llm_routing/arch_config.yaml b/demos/use_cases/llm_routing/arch_config.yaml
index 46acdc07..43bdd495 100644
--- a/demos/use_cases/llm_routing/arch_config.yaml
+++ b/demos/use_cases/llm_routing/arch_config.yaml
@@ -26,12 +26,12 @@ llm_providers:
     model: ministral-3b-latest
 
   - name: claude-sonnet
-    access_key: $ANTHROPY_API_KEY
+    access_key: $ANTHROPIC_API_KEY
     provider_interface: claude
     model: claude-3-7-sonnet-latest
 
   - name: claude-sonnet-4
-    access_key: $ANTHROPY_API_KEY
+    access_key: $ANTHROPIC_API_KEY
     provider_interface: claude
     model: claude-sonnet-4-0
 
diff --git a/demos/use_cases/preference_based_routing/arch_config.yaml b/demos/use_cases/preference_based_routing/arch_config.yaml
index 9e5d6043..e46c3684 100644
--- a/demos/use_cases/preference_based_routing/arch_config.yaml
+++ b/demos/use_cases/preference_based_routing/arch_config.yaml
@@ -29,9 +29,9 @@ llm_providers:
     default: true
 
   - name: code_generation
-    access_key: $ANTHROPY_API_KEY
+    access_key: $OPENAI_API_KEY
     provider_interface: claude
-    model: claude-3-7-sonnet-latest
+    model: gpt-4.1
     usage: generating new code snippets, functions, or boilerplate based on user prompts or requirements
 
   - name: code_understanding