diff --git a/src/opengradient/client/llm.py b/src/opengradient/client/llm.py
index 2d13224..53a9ff3 100644
--- a/src/opengradient/client/llm.py
+++ b/src/opengradient/client/llm.py
@@ -178,7 +178,7 @@ def chat(
         max_tokens: int = 100,
         stop_sequence: Optional[List[str]] = None,
         temperature: float = 0.0,
-        tools: Optional[List[Dict]] = [],
+        tools: Optional[List[Dict]] = None,
         tool_choice: Optional[str] = None,
         x402_settlement_mode: Optional[x402SettlementMode] = x402SettlementMode.SETTLE_BATCH,
         stream: bool = False,