diff --git a/services/core-ai/src/config.py b/services/core-ai/src/config.py
index 7dc28f7..7a52833 100644
--- a/services/core-ai/src/config.py
+++ b/services/core-ai/src/config.py
@@ -25,7 +25,7 @@ class Settings(BaseSettings):
     ollama_timeout: int = 300  # 5 minutes
 
     # Model Configuration
-    agent_model: str = "gemma2:9b-instruct-q5_K_M"  # Optimized for PydanticAI tool calling
+    agent_model: str = "mistral-tools:7b"  # Optimized for PydanticAI tool calling
 
     # System Prompt Variants
     system_prompt_variant: str = "minimal_agent"  # For simple mode