diff --git a/llm/default_plugins/openai_models.py b/llm/default_plugins/openai_models.py
index 956591d..a1d0076 100644
--- a/llm/default_plugins/openai_models.py
+++ b/llm/default_plugins/openai_models.py
@@ -1,4 +1,5 @@
-from llm import LogMessage, Model, Prompt, Response, hookimpl
+from llm import Model, Prompt, hookimpl
+import llm
 from llm.errors import NeedsKeyException
 from llm.utils import dicts_to_table_string
 import click
@@ -61,56 +62,6 @@ def register_commands(cli):
             print("\n".join(done))
 
 
-class ChatResponse(Response):
-    def __init__(self, prompt, model, stream, key):
-        super().__init__(prompt, model, stream)
-        self.key = key
-        self._prompt_json = None
-
-    def iter_prompt(self):
-        messages = []
-        if self.prompt.system:
-            messages.append({"role": "system", "content": self.prompt.system})
-        messages.append({"role": "user", "content": self.prompt.prompt})
-        openai.api_key = self.key
-        self._prompt_json = {"messages": messages}
-        if self.stream:
-            completion = openai.ChatCompletion.create(
-                model=self.prompt.model.model_id,
-                messages=messages,
-                stream=True,
-                **not_nulls(self.prompt.options),
-            )
-            chunks = []
-            for chunk in completion:
-                chunks.append(chunk)
-                content = chunk["choices"][0].get("delta", {}).get("content")
-                if content is not None:
-                    yield content
-            self._response_json = combine_chunks(chunks)
-        else:
-            response = openai.ChatCompletion.create(
-                model=self.prompt.model.model_id,
-                messages=messages,
-                stream=False,
-            )
-            self._response_json = response.to_dict_recursive()
-            yield response.choices[0].message.content
-
-    def log_message(self) -> LogMessage:
-        return LogMessage(
-            model=self.prompt.model.model_id,
-            prompt=self.prompt.prompt,
-            system=self.prompt.system,
-            prompt_json=self._prompt_json,
-            options_json=not_nulls(self.prompt.options),
-            response=self.text(),
-            response_json=self.json(),
-            reply_to_id=None,  # TODO
-            chat_id=None,  # TODO
-        )
-
-
 class Chat(Model):
     needs_key = "openai"
     key_env_var = "OPENAI_API_KEY"
@@ -150,17 +101,52 @@ class Chat(Model):
 
             return validated_logit_bias
 
+    class Response(llm.Response):
+        def __init__(self, prompt, model, stream, key):
+            super().__init__(prompt, model, stream)
+            self.key = key
+
+        def iter_prompt(self):
+            messages = []
+            if self.prompt.system:
+                messages.append({"role": "system", "content": self.prompt.system})
+            messages.append({"role": "user", "content": self.prompt.prompt})
+            openai.api_key = self.key
+            self._prompt_json = {"messages": messages}
+            if self.stream:
+                completion = openai.ChatCompletion.create(
+                    model=self.prompt.model.model_id,
+                    messages=messages,
+                    stream=True,
+                    **not_nulls(self.prompt.options),
+                )
+                chunks = []
+                for chunk in completion:
+                    chunks.append(chunk)
+                    content = chunk["choices"][0].get("delta", {}).get("content")
+                    if content is not None:
+                        yield content
+                self._response_json = combine_chunks(chunks)
+            else:
+                response = openai.ChatCompletion.create(
+                    model=self.prompt.model.model_id,
+                    messages=messages,
+                    stream=False,
+                )
+                self._response_json = response.to_dict_recursive()
+                yield response.choices[0].message.content
+
     def __init__(self, model_id, key=None):
         self.model_id = model_id
         self.key = key
 
-    def execute(self, prompt: Prompt, stream: bool = True) -> ChatResponse:
+    def execute(self, prompt: Prompt, stream: bool = True) -> Response:
         key = self.get_key()
         if key is None:
             raise NeedsKeyException(
                 "{} needs an API key, label={}".format(str(self), self.needs_key)
             )
-        return ChatResponse(prompt, self, stream, key=key)
+        return self.Response(prompt, self, stream, key=key)
 
     def __str__(self):
         return "OpenAI Chat: {}".format(self.model_id)
diff --git a/llm/models.py b/llm/models.py
index 46c7114..00c1549 100644
--- a/llm/models.py
+++ b/llm/models.py
@@ -13,7 +13,7 @@ class Prompt:
     model: "Model"
     system: Optional[str]
     prompt_json: Optional[str]
-    options: Dict[str, Any]
+    options: "Model.Options"
 
     def __init__(self, prompt, model, system=None, prompt_json=None, options=None):
         self.prompt = prompt
@@ -45,6 +45,7 @@ class LogMessage:
 class Response(ABC):
     def __init__(self, prompt: Prompt, model: "Model", stream: bool):
         self.prompt = prompt
+        self._prompt_json = None
         self.model = model
         self.stream = stream
         self._chunks: List[str] = []
@@ -99,10 +100,22 @@ class Response(ABC):
         self._force()
         return self._start_utcnow.isoformat()
 
-    @abstractmethod
     def log_message(self) -> LogMessage:
-        "Return a LogMessage of data to log"
-        pass
+        return LogMessage(
+            model=self.prompt.model.model_id,
+            prompt=self.prompt.prompt,
+            system=self.prompt.system,
+            prompt_json=self._prompt_json,
+            options_json={
+                key: value
+                for key, value in self.prompt.options.model_dump().items()
+                if value is not None
+            },
+            response=self.text(),
+            response_json=self.json(),
+            reply_to_id=None,  # TODO
+            chat_id=None,  # TODO
+        )
 
     def log_to_db(self, db):
         message = self.log_message()