diff --git a/assemblyai/__version__.py b/assemblyai/__version__.py
index e2ba204..4136999 100644
--- a/assemblyai/__version__.py
+++ b/assemblyai/__version__.py
@@ -1 +1 @@
-__version__ = "0.52.1"
+__version__ = "0.52.2"
diff --git a/assemblyai/streaming/v3/client.py b/assemblyai/streaming/v3/client.py
index aff51f1..b2b2002 100644
--- a/assemblyai/streaming/v3/client.py
+++ b/assemblyai/streaming/v3/client.py
@@ -73,10 +73,12 @@ def __init__(self, options: StreamingClientOptions):
     def connect(self, params: StreamingParameters) -> None:
         params_dict = _dump_model(params)
 
-        # JSON-encode list parameters for proper API compatibility (e.g., keyterms_prompt)
+        # JSON-encode list and dict parameters for proper API compatibility (e.g., keyterms_prompt, llm_gateway)
         for key, value in params_dict.items():
             if isinstance(value, list):
                 params_dict[key] = json.dumps(value)
+            elif isinstance(value, dict):
+                params_dict[key] = json.dumps(value)
 
         params_encoded = urlencode(params_dict)
 
diff --git a/assemblyai/streaming/v3/models.py b/assemblyai/streaming/v3/models.py
index c2a9aa4..b6557c5 100644
--- a/assemblyai/streaming/v3/models.py
+++ b/assemblyai/streaming/v3/models.py
@@ -5,6 +5,17 @@
 from pydantic import BaseModel
 
 
+class LLMGatewayMessage(BaseModel):
+    role: str
+    content: str
+
+
+class LLMGatewayConfig(BaseModel):
+    model: str
+    messages: List["LLMGatewayMessage"]
+    max_tokens: int
+
+
 class Word(BaseModel):
     start: int
     end: int
@@ -94,6 +105,7 @@ class StreamingParameters(StreamingSessionParameters):
     webhook_url: Optional[str] = None
     webhook_auth_header_name: Optional[str] = None
     webhook_auth_header_value: Optional[str] = None
+    llm_gateway: Optional[LLMGatewayConfig] = None
 
 
 class UpdateConfiguration(StreamingSessionParameters):