diff --git a/src/art/langgraph/llm_wrapper.py b/src/art/langgraph/llm_wrapper.py
index 21d1889f..b5cee898 100644
--- a/src/art/langgraph/llm_wrapper.py
+++ b/src/art/langgraph/llm_wrapper.py
@@ -5,7 +5,7 @@
 import json
 import os
 import uuid
-from typing import Any, Literal
+from typing import Any, Callable, Literal
 
 from langchain_core.messages import HumanMessage, ToolMessage
 from langchain_core.prompt_values import ChatPromptValue
@@ -113,26 +113,54 @@ def init_chat_model(
     model_provider: str | None = None,
     configurable_fields: Literal[None] = None,
     config_prefix: str | None = None,
+    chat_model=None,
+    timeout_seconds: float | None = None,
     **kwargs: Any,
 ):
     config = CURRENT_CONFIG.get()
+    if chat_model is not None:
+        llm = chat_model
+        llm_factory = None
+    else:
+        # Allow overrides passed to init_chat_model, otherwise fall back to the
+        # current context.
+        temperature = kwargs.pop("temperature", 1.0)
+        model_name = model or config["model"]
+        base_url = kwargs.pop("base_url", config["base_url"])
+        api_key = kwargs.pop("api_key", config["api_key"])
+
+        def llm_factory(ctx_config: dict[str, Any]):
+            return ChatOpenAI(
+                base_url=ctx_config.get("base_url", base_url),
+                api_key=ctx_config.get("api_key", api_key),
+                model=model_name,
+                temperature=temperature,
+                **kwargs,
+            )
+
+        llm = llm_factory(config)
+
     return LoggingLLM(
-        ChatOpenAI(
-            base_url=config["base_url"],
-            api_key=config["api_key"],
-            model=config["model"],
-            temperature=1.0,
-        ),
-        config["logger"],
+        llm, config["logger"], timeout_seconds=timeout_seconds, llm_factory=llm_factory
     )
 
 
 class LoggingLLM(Runnable):
-    def __init__(self, llm, logger, structured_output=None, tools=None):
+    def __init__(
+        self,
+        llm,
+        logger,
+        structured_output=None,
+        tools=None,
+        timeout_seconds: float | None = None,
+        llm_factory: Callable[[dict[str, Any]], Any] | None = None,
+    ):
         self.llm = llm
         self.logger = logger
         self.structured_output = structured_output
         self.tools = [convert_to_openai_tool(t) for t in tools] if tools else None
+        self.timeout_seconds = timeout_seconds or 10 * 60
+        self.llm_factory = llm_factory
 
     def _log(self, completion_id, input, output):
         if self.logger:
@@ -167,7 +195,7 @@ async def ainvoke(self, input, config=None, **kwargs):
         async def execute():
             try:
                 result = await asyncio.wait_for(
-                    self.llm.ainvoke(input, config=config), timeout=10 * 60
+                    self.llm.ainvoke(input, config=config), timeout=self.timeout_seconds
                 )
                 self._log(completion_id, input, result)
             except asyncio.TimeoutError as e:
@@ -194,10 +222,18 @@ def with_structured_output(self, tools):
             self.logger,
             structured_output=tools,
             tools=[tools],
+            timeout_seconds=self.timeout_seconds,
+            llm_factory=self.llm_factory,
         )
 
     def bind_tools(self, tools):
-        return LoggingLLM(self.llm.bind_tools(tools), self.logger, tools=tools)
+        return LoggingLLM(
+            self.llm.bind_tools(tools),
+            self.logger,
+            tools=tools,
+            timeout_seconds=self.timeout_seconds,
+            llm_factory=self.llm_factory,
+        )
 
     def with_retry(
         self,
@@ -217,23 +253,9 @@ def with_config(
         art_config = CURRENT_CONFIG.get()
         self.logger = art_config["logger"]
 
-        if hasattr(self.llm, "bound"):
-            setattr(
-                self.llm,
-                "bound",
-                ChatOpenAI(
-                    base_url=art_config["base_url"],
-                    api_key=art_config["api_key"],
-                    model=art_config["model"],
-                    temperature=1.0,
-                ),
-            )
-        else:
-            self.llm = ChatOpenAI(
-                base_url=art_config["base_url"],
-                api_key=art_config["api_key"],
-                model=art_config["model"],
-                temperature=1.0,
-            )
+        if self.llm_factory:
+            self.llm = self.llm_factory(art_config)
+        elif hasattr(self.llm, "with_config"):
+            self.llm = self.llm.with_config(config=config, **kwargs)
 
         return self