diff --git a/libs/core/kiln_ai/adapters/adapter_registry.py b/libs/core/kiln_ai/adapters/adapter_registry.py
index 873d4be7..f6dc6992 100644
--- a/libs/core/kiln_ai/adapters/adapter_registry.py
+++ b/libs/core/kiln_ai/adapters/adapter_registry.py
@@ -6,6 +6,7 @@
 from kiln_ai.adapters.model_adapters.langchain_adapters import LangchainAdapter
 from kiln_ai.adapters.model_adapters.openai_model_adapter import (
     OpenAICompatibleAdapter,
+    OpenAICompatibleConfig,
 )
 from kiln_ai.adapters.prompt_builders import BasePromptBuilder
 from kiln_ai.utils.config import Config
@@ -19,20 +20,22 @@ def adapter_for_task(
     tags: list[str] | None = None,
 ) -> BaseAdapter:
     if provider == ModelProviderName.openrouter:
-        api_key = Config.shared().open_router_api_key
-        base_url = getenv("OPENROUTER_BASE_URL") or "https://openrouter.ai/api/v1"
         return OpenAICompatibleAdapter(
-            base_url=base_url,
-            api_key=api_key,
             kiln_task=kiln_task,
-            model_name=model_name,
-            provider_name=provider,
+            config=OpenAICompatibleConfig(
+                base_url=getenv("OPENROUTER_BASE_URL")
+                or "https://openrouter.ai/api/v1",
+                api_key=Config.shared().open_router_api_key,
+                model_name=model_name,
+                provider_name=provider,
+                openrouter_style_reasoning=True,
+                default_headers={
+                    "HTTP-Referer": "https://getkiln.ai/openrouter",
+                    "X-Title": "KilnAI",
+                },
+            ),
             prompt_builder=prompt_builder,
             tags=tags,
-            default_headers={
-                "HTTP-Referer": "https://getkiln.ai/openrouter",
-                "X-Title": "KilnAI",
-            },
         )
 
     # We use langchain for all others right now, but moving off it as we touch anything.
diff --git a/libs/core/kiln_ai/adapters/model_adapters/langchain_adapters.py b/libs/core/kiln_ai/adapters/model_adapters/langchain_adapters.py
index 1ec4ff8f..3fc7c692 100644
--- a/libs/core/kiln_ai/adapters/model_adapters/langchain_adapters.py
+++ b/libs/core/kiln_ai/adapters/model_adapters/langchain_adapters.py
@@ -1,5 +1,4 @@
 import os
-from os import getenv
 from typing import Any, Dict, NoReturn
 
 from langchain_aws import ChatBedrockConverse
diff --git a/libs/core/kiln_ai/adapters/model_adapters/openai_model_adapter.py b/libs/core/kiln_ai/adapters/model_adapters/openai_model_adapter.py
index eb39aeb7..d6a24661 100644
--- a/libs/core/kiln_ai/adapters/model_adapters/openai_model_adapter.py
+++ b/libs/core/kiln_ai/adapters/model_adapters/openai_model_adapter.py
@@ -1,3 +1,4 @@
+from dataclasses import dataclass
 from typing import Any, Dict, NoReturn
 
 from openai import AsyncOpenAI
@@ -7,7 +8,6 @@
     ChatCompletionSystemMessageParam,
     ChatCompletionUserMessageParam,
 )
-from openai.types.chat.chat_completion import Choice
 
 import kiln_ai.datamodel as datamodel
 from kiln_ai.adapters.ml_model_list import StructuredOutputMode
@@ -20,32 +20,35 @@
 from kiln_ai.adapters.parsers.json_parser import parse_json_string
 
 
+@dataclass
+class OpenAICompatibleConfig:
+    api_key: str
+    model_name: str
+    provider_name: str
+    base_url: str | None = None
+    default_headers: dict[str, str] | None = None
+    openrouter_style_reasoning: bool = False
+
+
 class OpenAICompatibleAdapter(BaseAdapter):
     def __init__(
         self,
-        api_key: str,
+        config: OpenAICompatibleConfig,
         kiln_task: datamodel.Task,
-        model_name: str,
-        provider_name: str,
-        base_url: str | None = None,  # Client will default to OpenAI
-        default_headers: dict[str, str] | None = None,
         prompt_builder: BasePromptBuilder | None = None,
         tags: list[str] | None = None,
     ):
-        if not model_name or not provider_name:
-            raise ValueError(
-                "model_name and provider_name must be provided for OpenAI compatible adapter"
-            )
-
-        # Create an async OpenAI client instead
+        self.config = config
         self.client = AsyncOpenAI(
-            api_key=api_key, base_url=base_url, default_headers=default_headers
+            api_key=config.api_key,
+            base_url=config.base_url,
+            default_headers=config.default_headers,
         )
 
         super().__init__(
             kiln_task,
-            model_name=model_name,
-            model_provider_name=provider_name,
+            model_name=config.model_name,
+            model_provider_name=config.provider_name,
             prompt_builder=prompt_builder,
             tags=tags,
         )
@@ -95,15 +98,15 @@ async def _run(self, input: Dict | str) -> RunOutput:
 
         # Main completion call
         response_format_options = await self.response_format_options()
-        print(f"response_format_options: {response_format_options}")
         response = await self.client.chat.completions.create(
             model=provider.provider_options["model"],
             messages=messages,
-            # TODO P0: remove this
-            extra_body={"include_reasoning": True},
+            extra_body={"include_reasoning": True}
+            if self.config.openrouter_style_reasoning
+            else {},
             **response_format_options,
         )
-        print(f"response: {response}")
+
         if not isinstance(response, ChatCompletion):
             raise RuntimeError(
                 f"Expected ChatCompletion response, got {type(response)}."
@@ -121,7 +124,11 @@ async def _run(self, input: Dict | str) -> RunOutput:
         message = response.choices[0].message
 
         # Save reasoning if it exists
-        if hasattr(message, "reasoning") and message.reasoning:  # pyright: ignore
+        if (
+            self.config.openrouter_style_reasoning
+            and hasattr(message, "reasoning")
+            and message.reasoning  # pyright: ignore
+        ):
             intermediate_outputs["reasoning"] = message.reasoning  # pyright: ignore
 
         # the string content of the response
@@ -170,14 +177,11 @@ async def response_format_options(self) -> dict[str, Any]:
             return {}
 
         provider = await self.model_provider()
-        # TODO check these
         match provider.structured_output_mode:
             case StructuredOutputMode.json_mode:
                 return {"response_format": {"type": "json_object"}}
             case StructuredOutputMode.json_schema:
-                # TODO P0: use json_schema
                 output_schema = self.kiln_task.output_schema()
-                print(f"output_schema: {output_schema}")
                 return {
                     "response_format": {
                         "type": "json_schema",
@@ -188,17 +192,15 @@ async def response_format_options(self) -> dict[str, Any]:
                     }
                 }
             case StructuredOutputMode.function_calling:
-                # TODO P0
                 return self.tool_call_params()
             case StructuredOutputMode.json_instructions:
-                # JSON done via instructions in prompt, not the API response format
-                # TODO try json_object on stable API
+                # JSON done via instructions in prompt, not the API response format. Do not ask for json_object (see option below).
                 return {}
             case StructuredOutputMode.json_instruction_and_object:
-                # We set response_format to json_object, but we also need to set the instructions in the prompt
+                # We set response_format to json_object and also set json instructions in the prompt
                 return {"response_format": {"type": "json_object"}}
             case StructuredOutputMode.default:
-                # Default to function calling -- it's older than the other modes
+                # Default to function calling -- it's older than the other modes. Higher compatibility.
                 return self.tool_call_params()
             case _:
                 raise ValueError(