handle openai

requirements/requirements-common.txt

@@ -6,7 +6,7 @@ dotenv==0.9.9
 voyageai==0.3.2
 qdrant-client==1.9.0
 anthropic==0.69.0 
-openai==1.25.0
+openai==2.3.0
 # Pin the httpx version, as newer versions break the anthropic client
 httpx==0.27.0
 celery[sqs]==5.3.6

src/memory/common/llms/__init__.py

@@ -22,10 +22,14 @@ from memory.common.llms.base import (
     ToolUseContent,
     create_provider,
 )
+from memory.common.llms.anthropic_provider import AnthropicProvider
+from memory.common.llms.openai_provider import OpenAIProvider
 from memory.common import tokens
 
 __all__ = [
     "BaseLLMProvider",
+    "AnthropicProvider",
+    "OpenAIProvider",
     "Message",
     "MessageRole",
     "MessageContent",

src/memory/common/llms/anthropic_provider.py

@@ -2,7 +2,7 @@
 
 import json
 import logging
-from typing import Any, AsyncIterator, Iterator, Optional
+from typing import Any, AsyncIterator, Iterator
 
 import anthropic
 
@@ -14,9 +14,6 @@ from memory.common.llms.base import (
     MessageRole,
     StreamEvent,
     ToolDefinition,
-    ToolUseContent,
-    ThinkingContent,
-    TextContent,
 )
 
 logger = logging.getLogger(__name__)
@@ -45,7 +42,7 @@ class AnthropicProvider(BaseLLMProvider):
         """
         super().__init__(api_key, model)
         self.enable_thinking = enable_thinking
-        self._async_client: Optional[anthropic.AsyncAnthropic] = None
+        self._async_client: anthropic.AsyncAnthropic | None = None
 
     def _initialize_client(self) -> anthropic.Anthropic:
         """Initialize the Anthropic client."""
@@ -336,6 +333,7 @@ class AnthropicProvider(BaseLLMProvider):
         settings = settings or LLMSettings()
         kwargs = self._build_request_kwargs(messages, system_prompt, tools, settings)
 
+        print(kwargs)
         try:
             with self.client.messages.stream(**kwargs) as stream:
                 current_tool_use: dict[str, Any] | None = None
@@ -396,56 +394,3 @@ class AnthropicProvider(BaseLLMProvider):
         except Exception as e:
             logger.error(f"Anthropic streaming error: {e}")
             yield StreamEvent(type="error", data=str(e))
-
-    def stream_with_tools(
-        self,
-        messages: list[Message],
-        tools: dict[str, ToolDefinition],
-        settings: LLMSettings | None = None,
-        system_prompt: str | None = None,
-        max_iterations: int = 10,
-    ) -> Iterator[StreamEvent]:
-        if max_iterations <= 0:
-            return
-
-        response = TextContent(text="")
-        thinking = ThinkingContent(thinking="", signature="")
-
-        for event in self.stream(
-            messages=messages,
-            system_prompt=system_prompt,
-            tools=list(tools.values()),
-            settings=settings,
-        ):
-            if event.type == "text":
-                response.text += event.data
-                yield event
-            elif event.type == "thinking" and event.signature:
-                thinking.signature = event.signature
-            elif event.type == "thinking":
-                thinking.thinking += event.data
-                yield event
-            elif event.type == "tool_use":
-                yield event
-                tool_result = self.execute_tool(event.data, tools)
-                yield StreamEvent(type="tool_result", data=tool_result.to_dict())
-                messages.append(
-                    Message.assistant(
-                        response,
-                        thinking,
-                        ToolUseContent(
-                            id=event.data["id"],
-                            name=event.data["name"],
-                            input=event.data["input"],
-                        ),
-                    )
-                )
-                messages.append(Message.user(tool_result=tool_result))
-                yield from self.stream_with_tools(
-                    messages, tools, settings, system_prompt, max_iterations - 1
-                )
-            elif event.type == "tool_result":
-                yield event
-            elif event.type == "error":
-                logger.error(f"LLM error: {event.data}")
-                raise RuntimeError(f"LLM error: {event.data}")

src/memory/common/llms/base.py

@@ -6,7 +6,7 @@ import logging
 from abc import ABC, abstractmethod
 from dataclasses import dataclass
 from enum import Enum
-from typing import Any, AsyncIterator, Iterator, Literal, Optional, Union
+from typing import Any, AsyncIterator, Iterator, Literal, Union, cast
 
 from PIL import Image
 
@@ -36,6 +36,10 @@ class TextContent:
         """Convert to dictionary format."""
         return {"type": "text", "text": self.text}
 
+    @property
+    def valid(self):
+        return self.text
+
 
 @dataclass
 class ImageContent:
@@ -43,13 +47,17 @@ class ImageContent:
 
     type: Literal["image"] = "image"
     image: Image.Image = None  # type: ignore
-    detail: Optional[str] = None  # For OpenAI: "low", "high", "auto"
+    detail: str | None = None  # For OpenAI: "low", "high", "auto"
 
     def to_dict(self) -> dict[str, Any]:
         """Convert to dictionary format."""
         # Note: Image will be encoded by provider-specific implementation
         return {"type": "image", "image": self.image}
 
+    @property
+    def valid(self):
+        return self.image
+
 
 @dataclass
 class ToolUseContent:
@@ -69,6 +77,10 @@ class ToolUseContent:
             "input": self.input,
         }
 
+    @property
+    def valid(self):
+        return self.id and self.name
+
 
 @dataclass
 class ToolResultContent:
@@ -88,6 +100,10 @@ class ToolResultContent:
             "is_error": self.is_error,
         }
 
+    @property
+    def valid(self):
+        return self.tool_use_id
+
 
 @dataclass
 class ThinkingContent:
@@ -105,6 +121,10 @@ class ThinkingContent:
             "signature": self.signature,
         }
 
+    @property
+    def valid(self):
+        return self.thinking and self.signature
+
 
 MessageContent = Union[
     TextContent, ImageContent, ToolUseContent, ToolResultContent, ThinkingContent
@@ -135,18 +155,8 @@ class Message:
         return {"role": self.role.value, "content": content_list}
 
     @staticmethod
-    def assistant(
-        text: TextContent | None = None,
-        thinking: ThinkingContent | None = None,
-        tool_use: ToolUseContent | None = None,
-    ) -> "Message":
-        parts = []
-        if text:
-            parts.append(text)
-        if thinking:
-            parts.append(thinking)
-        if tool_use:
-            parts.append(tool_use)
+    def assistant(*content: MessageContent) -> "Message":
+        parts = [c for c in content if c.valid]
         return Message(role=MessageRole.ASSISTANT, content=parts)
 
     @staticmethod
@@ -295,13 +305,22 @@ class BaseLLMProvider(ABC):
         """Convert ThinkingContent to provider format. Override for custom format."""
         return content.to_dict()
 
-    def _convert_message_content(self, content: MessageContent) -> dict[str, Any]:
+    def _convert_message_content(
+        self, content: str | MessageContent | list[MessageContent]
+    ) -> dict[str, Any] | list[dict[str, Any]]:
         """
         Convert a MessageContent item to provider format.
 
         Dispatches to type-specific converters that can be overridden.
         """
-        if isinstance(content, TextContent):
+        if isinstance(content, str):
+            return self._convert_text_content(TextContent(text=content))
+        elif isinstance(content, list):
+            return [
+                cast(dict[str, Any], self._convert_message_content(item))
+                for item in content
+            ]
+        elif isinstance(content, TextContent):
             return self._convert_text_content(content)
         elif isinstance(content, ImageContent):
             return self._convert_image_content(content)
@@ -318,9 +337,16 @@ class BaseLLMProvider(ABC):
         """
         Convert a Message to provider format.
 
-        Can be overridden for provider-specific handling (e.g., filtering system messages).
+        Handles both string content and list[MessageContent], using provider-specific
+        content converters for each content item.
+
+        Can be overridden for provider-specific handling (e.g., OpenAI's tool results).
         """
-        return message.to_dict()
+        # Handle simple string content
+        return {
+            "role": message.role.value,
+            "content": self._convert_message_content(message.content),
+        }
 
     def _should_include_message(self, message: Message) -> bool:
         """
@@ -362,7 +388,7 @@ class BaseLLMProvider(ABC):
 
     def _convert_tools(
         self, tools: list[ToolDefinition] | None
-    ) -> Optional[list[dict[str, Any]]]:
+    ) -> list[dict[str, Any]] | None:
         """Convert tool definitions to provider format."""
         if not tools:
             return None
@@ -456,7 +482,6 @@ class BaseLLMProvider(ABC):
         """
         pass
 
-    @abstractmethod
     def stream_with_tools(
         self,
         messages: list[Message],
@@ -465,7 +490,75 @@ class BaseLLMProvider(ABC):
         system_prompt: str | None = None,
         max_iterations: int = 10,
     ) -> Iterator[StreamEvent]:
-        pass
+        """
+        Stream response with automatic tool execution.
+
+        This method handles the tool call loop automatically, executing tools
+        and sending results back to the LLM until it produces a final response
+        or max_iterations is reached.
+
+        Args:
+            messages: Conversation history
+            tools: Dict mapping tool names to ToolDefinition handlers
+            settings: Optional settings for the generation
+            system_prompt: Optional system prompt
+            max_iterations: Maximum number of tool call iterations
+
+        Yields:
+            StreamEvent objects for text, tool calls, and tool results
+        """
+        if max_iterations <= 0:
+            return
+
+        response = TextContent(text="")
+        thinking = ThinkingContent(thinking="")
+
+        for event in self.stream(
+            messages=messages,
+            system_prompt=system_prompt,
+            tools=list(tools.values()),
+            settings=settings,
+        ):
+            if event.type == "text":
+                response.text += event.data
+                yield event
+            elif event.type == "thinking":
+                thinking.thinking += event.data
+                yield event
+            elif event.type == "tool_use":
+                yield event
+                # Execute the tool and yield the result
+                tool_result = self.execute_tool(event.data, tools)
+                yield StreamEvent(type="tool_result", data=tool_result.to_dict())
+
+                # Add assistant message with tool call
+                messages.append(
+                    Message.assistant(
+                        response,
+                        thinking,
+                        ToolUseContent(
+                            id=event.data["id"],
+                            name=event.data["name"],
+                            input=event.data["input"],
+                        ),
+                    )
+                )
+
+                # Add user message with tool result
+                messages.append(Message.user(tool_result=tool_result))
+
+                # Recursively continue the conversation with reduced iterations
+                yield from self.stream_with_tools(
+                    messages, tools, settings, system_prompt, max_iterations - 1
+                )
+                return  # Exit after recursive call completes
+
+            elif event.type == "error":
+                logger.error(f"LLM error: {event.data}")
+                raise RuntimeError(f"LLM error: {event.data}")
+            elif event.type == "done":
+                # Stream completed without tool calls
+                yield event
 
     def run_with_tools(
         self,
@@ -550,12 +643,22 @@ def create_provider(
             api_key=api_key, model=model, enable_thinking=enable_thinking
         )
 
-    # Could add OpenAI support here in the future
-    # elif "gpt" in model_lower or model.startswith("openai"):
-    #     ...
+    elif provider == "openai":
+        # OpenAI models
+        if api_key is None:
+            api_key = settings.OPENAI_API_KEY
+
+        if not api_key:
+            raise ValueError(
+                "OPENAI_API_KEY not found in settings. Please set it in your .env file."
+            )
+
+        from memory.common.llms.openai_provider import OpenAIProvider
+
+        return OpenAIProvider(api_key=api_key, model=model)
 
     else:
         raise ValueError(
             f"Unknown provider for model: {model}. "
-            f"Supported providers: Anthropic (claude-*)"
+            f"Supported providers: Anthropic (anthropic/*), OpenAI (openai/*)"
         )

src/memory/common/llms/openai_provider.py

@@ -1,7 +1,8 @@
 """OpenAI LLM provider implementation."""
 
+import json
 import logging
-from typing import Any, AsyncIterator, Iterator, Optional
+from typing import Any, AsyncIterator, Iterator
 
 import openai
 
@@ -10,11 +11,8 @@ from memory.common.llms.base import (
     ImageContent,
     LLMSettings,
     Message,
-    MessageContent,
-    MessageRole,
     StreamEvent,
     TextContent,
-    ThinkingContent,
     ToolDefinition,
     ToolResultContent,
     ToolUseContent,
@@ -26,92 +24,132 @@ logger = logging.getLogger(__name__)
 class OpenAIProvider(BaseLLMProvider):
     """OpenAI LLM provider with streaming and tool support."""
 
+    # Models that use max_completion_tokens instead of max_tokens
+    # These are reasoning models with different parameter requirements
+    NON_REASONING_MODELS = {"gpt-4o"}
+
+    def __init__(self, api_key: str, model: str):
+        """
+        Initialize the OpenAI provider.
+
+        Args:
+            api_key: OpenAI API key
+            model: Model identifier
+        """
+        super().__init__(api_key, model)
+        self._async_client: openai.AsyncOpenAI | None = None
+
+    def _is_reasoning_model(self) -> bool:
+        """
+        Check if the current model is a reasoning model (o1 series).
+
+        Reasoning models have different parameter requirements:
+        - Use max_completion_tokens instead of max_tokens
+        - Don't support temperature (always uses temperature=1)
+        - Don't support top_p
+        - Don't support system messages via system parameter
+        """
+        return self.model.lower() not in self.NON_REASONING_MODELS
+
     def _initialize_client(self) -> openai.OpenAI:
         """Initialize the OpenAI client."""
         return openai.OpenAI(api_key=self.api_key)
 
+    @property
+    def async_client(self) -> openai.AsyncOpenAI:
+        """Lazy-load the async client."""
+        if self._async_client is None:
+            self._async_client = openai.AsyncOpenAI(api_key=self.api_key)
+        return self._async_client
+
+    def _convert_text_content(self, content: TextContent) -> dict[str, Any]:
+        """Convert TextContent to OpenAI format."""
+        return {"type": "text", "text": content.text}
+
+    def _convert_image_content(self, content: ImageContent) -> dict[str, Any]:
+        """Convert ImageContent to OpenAI image_url format."""
+        encoded_image = self.encode_image(content.image)
+        image_part: dict[str, Any] = {
+            "type": "image_url",
+            "image_url": {"url": f"data:image/jpeg;base64,{encoded_image}"},
+        }
+        if content.detail:
+            image_part["image_url"]["detail"] = content.detail
+        return image_part
+
+    def _convert_tool_use_content(self, content: ToolUseContent) -> dict[str, Any]:
+        """Convert ToolUseContent to provider format. Override for custom format."""
+        return {
+            "id": content.id,
+            "type": "function",
+            "function": {
+                "name": content.name,
+                "arguments": json.dumps(content.input),
+            },
+        }
+
+    def _convert_tool_result_content(
+        self, content: ToolResultContent
+    ) -> dict[str, Any]:
+        """Convert ToolResultContent to provider format. Override for custom format."""
+        return {
+            "role": "tool",
+            "tool_call_id": content.tool_use_id,
+            "content": content.content,
+        }
+
     def _convert_messages(self, messages: list[Message]) -> list[dict[str, Any]]:
         """
-        Convert our Message format to OpenAI format.
+        Convert messages to OpenAI format.
 
-        Args:
-            messages: List of messages in our format
+        OpenAI has special requirements:
+        - ToolResultContent creates separate "tool" role messages
+        - ToolUseContent becomes tool_calls field on assistant messages
+        - One input Message can produce multiple output messages
 
         Returns:
-            List of messages in OpenAI format
+            Flat list of OpenAI-formatted message dicts
         """
-        openai_messages = []
+        openai_messages: list[dict[str, Any]] = []
 
-        for msg in messages:
-            if isinstance(msg.content, str):
-                openai_messages.append({"role": msg.role.value, "content": msg.content})
-            else:
-                # Handle multi-part content
-                content_parts = []
-                for item in msg.content:
-                    if isinstance(item, TextContent):
-                        content_parts.append({"type": "text", "text": item.text})
-                    elif isinstance(item, ImageContent):
-                        encoded_image = self.encode_image(item.image)
-                        image_part: dict[str, Any] = {
-                            "type": "image_url",
-                            "image_url": {
-                                "url": f"data:image/jpeg;base64,{encoded_image}"
-                            },
-                        }
-                        if item.detail:
-                            image_part["image_url"]["detail"] = item.detail
-                        content_parts.append(image_part)
-                    elif isinstance(item, ToolUseContent):
-                        # OpenAI doesn't have tool_use in content, it's a separate field
-                        # We'll handle this by adding a tool_calls field to the message
-                        pass
-                    elif isinstance(item, ToolResultContent):
-                        # OpenAI handles tool results as separate "tool" role messages
-                        openai_messages.append(
-                            {
-                                "role": "tool",
-                                "tool_call_id": item.tool_use_id,
-                                "content": item.content,
-                            }
-                        )
-                        continue
-                    elif isinstance(item, ThinkingContent):
-                        # OpenAI doesn't have native thinking support in most models
-                        # We can add it as text with a special marker
-                        content_parts.append(
-                            {
-                                "type": "text",
-                                "text": f"[Thinking: {item.thinking}]",
-                            }
-                        )
+        for message in messages:
+            # Handle simple string content
+            if isinstance(message.content, str):
+                openai_messages.append(
+                    {"role": message.role.value, "content": message.content}
+                )
+                continue
 
-                # Check if this message has tool calls
-                tool_calls = [
-                    item for item in msg.content if isinstance(item, ToolUseContent)
-                ]
+            # Handle multi-part content
+            content_parts: list[dict[str, Any]] = []
+            tool_calls_list: list[dict[str, Any]] = []
 
-                message_dict: dict[str, Any] = {"role": msg.role.value}
+            for item in message.content:
+                if isinstance(item, ToolResultContent):
+                    openai_messages.append(self._convert_tool_result_content(item))
+                elif isinstance(item, ToolUseContent):
+                    tool_calls_list.append(self._convert_tool_use_content(item))
+                else:
+                    content_parts.append(self._convert_message_content(item))
+
+            if content_parts or tool_calls_list:
+                msg_dict: dict[str, Any] = {"role": message.role.value}
 
                 if content_parts:
-                    message_dict["content"] = content_parts
+                    msg_dict["content"] = content_parts
+                elif tool_calls_list:
+                    # Assistant messages with tool calls need content field (use empty string)
+                    msg_dict["content"] = ""
 
-                if tool_calls:
-                    message_dict["tool_calls"] = [
-                        {
-                            "id": tc.id,
-                            "type": "function",
-                            "function": {"name": tc.name, "arguments": str(tc.input)},
-                        }
-                        for tc in tool_calls
-                    ]
+                if tool_calls_list:
+                    msg_dict["tool_calls"] = tool_calls_list
 
-                openai_messages.append(message_dict)
+                openai_messages.append(msg_dict)
 
         return openai_messages
 
     def _convert_tools(
-        self, tools: Optional[list[ToolDefinition]]
+        self, tools: list[ToolDefinition] | None
     ) -> Optional[list[dict[str, Any]]]:
         """
         Convert our tool definitions to OpenAI format.
@@ -137,6 +175,153 @@ class OpenAIProvider(BaseLLMProvider):
             for tool in tools
         ]
 
+    def _build_request_kwargs(
+        self,
+        messages: list[Message],
+        system_prompt: str | None,
+        tools: Optional[list[ToolDefinition]],
+        settings: LLMSettings,
+        stream: bool = False,
+    ) -> dict[str, Any]:
+        """
+        Build common request kwargs for API calls.
+
+        Args:
+            messages: Conversation history
+            system_prompt: Optional system prompt
+            tools: Optional list of tools
+            settings: LLM settings
+            stream: Whether to enable streaming
+
+        Returns:
+            Dictionary of kwargs for OpenAI API call
+        """
+        openai_messages = self._convert_messages(messages)
+        is_reasoning = self._is_reasoning_model()
+
+        # Log info for reasoning models on first use
+        if is_reasoning:
+            logger.debug(
+                f"Using reasoning model {self.model}: "
+                "max_completion_tokens will be used, temperature/top_p ignored"
+            )
+
+        # Reasoning models (o1) don't support system parameter
+        # System message must be added as a developer message instead
+        if system_prompt:
+            if is_reasoning:
+                # For o1 models, add system prompt as a developer message
+                openai_messages.insert(
+                    0, {"role": "developer", "content": system_prompt}
+                )
+            else:
+                # For other models, add as system message
+                openai_messages.insert(0, {"role": "system", "content": system_prompt})
+
+        # Reasoning models use max_completion_tokens instead of max_tokens
+        max_tokens_key = "max_completion_tokens" if is_reasoning else "max_tokens"
+
+        kwargs: dict[str, Any] = {
+            "model": self.model,
+            "messages": openai_messages,
+            max_tokens_key: settings.max_tokens,
+        }
+
+        # Reasoning models don't support temperature or top_p
+        if not is_reasoning:
+            kwargs["temperature"] = settings.temperature
+            kwargs["top_p"] = settings.top_p
+
+        if stream:
+            kwargs["stream"] = True
+
+        if settings.stop_sequences:
+            kwargs["stop"] = settings.stop_sequences
+
+        if tools:
+            kwargs["tools"] = self._convert_tools(tools)
+            kwargs["tool_choice"] = "auto"
+
+        return kwargs
+
+    def _parse_and_finalize_tool_call(
+        self, tool_call: dict[str, Any]
+    ) -> dict[str, Any]:
+        """
+        Parse the accumulated tool call arguments and prepare for yielding.
+
+        Args:
+            tool_call: Tool call dict with 'arguments' field (JSON string)
+
+        Returns:
+            Tool call dict with parsed 'input' field (dict)
+        """
+        try:
+            tool_call["input"] = json.loads(tool_call["arguments"])
+        except json.JSONDecodeError as e:
+            logger.warning(
+                f"Failed to parse tool arguments '{tool_call['arguments']}': {e}"
+            )
+            tool_call["input"] = {}
+        del tool_call["arguments"]
+        return tool_call
+
+    def _handle_stream_chunk(
+        self,
+        chunk: Any,
+        current_tool_call: dict[str, Any] | None,
+    ) -> tuple[list[StreamEvent], Optional[dict[str, Any]]]:
+        """
+        Handle a single streaming chunk and return events and updated tool state.
+
+        Args:
+            chunk: Streaming chunk from OpenAI
+            current_tool_call: Current tool call being accumulated (or None)
+
+        Returns:
+            Tuple of (list of StreamEvents to yield, updated current_tool_call)
+        """
+        events: list[StreamEvent] = []
+
+        if not chunk.choices:
+            return events, current_tool_call
+
+        delta = chunk.choices[0].delta
+
+        # Handle text content
+        if delta.content:
+            events.append(StreamEvent(type="text", data=delta.content))
+
+        # Handle tool calls
+        if delta.tool_calls:
+            for tool_call in delta.tool_calls:
+                if tool_call.id:
+                    # New tool call starting
+                    if current_tool_call:
+                        # Yield the previous one with parsed input
+                        finalized = self._parse_and_finalize_tool_call(
+                            current_tool_call
+                        )
+                        events.append(StreamEvent(type="tool_use", data=finalized))
+                    current_tool_call = {
+                        "id": tool_call.id,
+                        "name": tool_call.function.name or "",
+                        "arguments": tool_call.function.arguments or "",
+                    }
+                elif current_tool_call and tool_call.function.arguments:
+                    # Continue building the current tool call
+                    current_tool_call["arguments"] += tool_call.function.arguments
+
+        # Check if stream is finished
+        if chunk.choices[0].finish_reason:
+            if current_tool_call:
+                # Parse the final tool call arguments
+                finalized = self._parse_and_finalize_tool_call(current_tool_call)
+                events.append(StreamEvent(type="tool_use", data=finalized))
+                current_tool_call = None
+
+        return events, current_tool_call
+
     def generate(
         self,
         messages: list[Message],
@@ -146,29 +331,9 @@ class OpenAIProvider(BaseLLMProvider):
     ) -> str:
         """Generate a non-streaming response."""
         settings = settings or LLMSettings()
-
-        openai_messages = self._convert_messages(messages)
-
-        # Add system prompt as first message if provided
-        if system_prompt:
-            openai_messages.insert(
-                0, {"role": "system", "content": system_prompt}
-            )
-
-        kwargs: dict[str, Any] = {
-            "model": self.model,
-            "messages": openai_messages,
-            "temperature": settings.temperature,
-            "max_tokens": settings.max_tokens,
-            "top_p": settings.top_p,
-        }
-
-        if settings.stop_sequences:
-            kwargs["stop"] = settings.stop_sequences
-
-        if tools:
-            kwargs["tools"] = self._convert_tools(tools)
-            kwargs["tool_choice"] = "auto"
+        kwargs = self._build_request_kwargs(
+            messages, system_prompt, tools, settings, stream=False
+        )
 
         try:
             response = self.client.chat.completions.create(**kwargs)
@@ -180,78 +345,25 @@ class OpenAIProvider(BaseLLMProvider):
     def stream(
         self,
         messages: list[Message],
-        system_prompt: Optional[str] = None,
-        tools: Optional[list[ToolDefinition]] = None,
-        settings: Optional[LLMSettings] = None,
+        system_prompt: str | None = None,
+        tools: list[ToolDefinition] | None = None,
+        settings: LLMSettings | None = None,
     ) -> Iterator[StreamEvent]:
         """Generate a streaming response."""
         settings = settings or LLMSettings()
-
-        openai_messages = self._convert_messages(messages)
-
-        # Add system prompt as first message if provided
-        if system_prompt:
-            openai_messages.insert(
-                0, {"role": "system", "content": system_prompt}
-            )
-
-        kwargs: dict[str, Any] = {
-            "model": self.model,
-            "messages": openai_messages,
-            "temperature": settings.temperature,
-            "max_tokens": settings.max_tokens,
-            "top_p": settings.top_p,
-            "stream": True,
-        }
-
-        if settings.stop_sequences:
-            kwargs["stop"] = settings.stop_sequences
-
-        if tools:
-            kwargs["tools"] = self._convert_tools(tools)
-            kwargs["tool_choice"] = "auto"
+        kwargs = self._build_request_kwargs(
+            messages, system_prompt, tools, settings, stream=True
+        )
 
         try:
             stream = self.client.chat.completions.create(**kwargs)
-
-            current_tool_call: Optional[dict[str, Any]] = None
+            current_tool_call: dict[str, Any] | None = None
 
             for chunk in stream:
-                if not chunk.choices:
-                    continue
-
-                delta = chunk.choices[0].delta
-
-                # Handle text content
-                if delta.content:
-                    yield StreamEvent(type="text", data=delta.content)
-
-                # Handle tool calls
-                if delta.tool_calls:
-                    for tool_call in delta.tool_calls:
-                        if tool_call.id:
-                            # New tool call starting
-                            if current_tool_call:
-                                # Yield the previous one
-                                yield StreamEvent(
-                                    type="tool_use", data=current_tool_call
-                                )
-                            current_tool_call = {
-                                "id": tool_call.id,
-                                "name": tool_call.function.name or "",
-                                "arguments": tool_call.function.arguments or "",
-                            }
-                        elif current_tool_call and tool_call.function.arguments:
-                            # Continue building the current tool call
-                            current_tool_call["arguments"] += (
-                                tool_call.function.arguments
-                            )
-
-                # Check if stream is finished
-                if chunk.choices[0].finish_reason:
-                    if current_tool_call:
-                        yield StreamEvent(type="tool_use", data=current_tool_call)
-                        current_tool_call = None
+                events, current_tool_call = self._handle_stream_chunk(
+                    chunk, current_tool_call
+                )
+                yield from events
 
             yield StreamEvent(type="done")
 
@@ -268,35 +380,12 @@ class OpenAIProvider(BaseLLMProvider):
     ) -> str:
         """Generate a non-streaming response asynchronously."""
         settings = settings or LLMSettings()
-
-        # Use async client
-        async_client = openai.AsyncOpenAI(api_key=self.api_key)
-
-        openai_messages = self._convert_messages(messages)
-
-        # Add system prompt as first message if provided
-        if system_prompt:
-            openai_messages.insert(
-                0, {"role": "system", "content": system_prompt}
-            )
-
-        kwargs: dict[str, Any] = {
-            "model": self.model,
-            "messages": openai_messages,
-            "temperature": settings.temperature,
-            "max_tokens": settings.max_tokens,
-            "top_p": settings.top_p,
-        }
-
-        if settings.stop_sequences:
-            kwargs["stop"] = settings.stop_sequences
-
-        if tools:
-            kwargs["tools"] = self._convert_tools(tools)
-            kwargs["tool_choice"] = "auto"
+        kwargs = self._build_request_kwargs(
+            messages, system_prompt, tools, settings, stream=False
+        )
 
         try:
-            response = await async_client.chat.completions.create(**kwargs)
+            response = await self.async_client.chat.completions.create(**kwargs)
             return response.choices[0].message.content or ""
         except Exception as e:
             logger.error(f"OpenAI API error: {e}")
@@ -311,75 +400,20 @@ class OpenAIProvider(BaseLLMProvider):
     ) -> AsyncIterator[StreamEvent]:
         """Generate a streaming response asynchronously."""
         settings = settings or LLMSettings()
-
-        # Use async client
-        async_client = openai.AsyncOpenAI(api_key=self.api_key)
-
-        openai_messages = self._convert_messages(messages)
-
-        # Add system prompt as first message if provided
-        if system_prompt:
-            openai_messages.insert(
-                0, {"role": "system", "content": system_prompt}
-            )
-
-        kwargs: dict[str, Any] = {
-            "model": self.model,
-            "messages": openai_messages,
-            "temperature": settings.temperature,
-            "max_tokens": settings.max_tokens,
-            "top_p": settings.top_p,
-            "stream": True,
-        }
-
-        if settings.stop_sequences:
-            kwargs["stop"] = settings.stop_sequences
-
-        if tools:
-            kwargs["tools"] = self._convert_tools(tools)
-            kwargs["tool_choice"] = "auto"
+        kwargs = self._build_request_kwargs(
+            messages, system_prompt, tools, settings, stream=True
+        )
 
         try:
-            stream = await async_client.chat.completions.create(**kwargs)
-
+            stream = await self.async_client.chat.completions.create(**kwargs)
             current_tool_call: Optional[dict[str, Any]] = None
 
             async for chunk in stream:
-                if not chunk.choices:
-                    continue
-
-                delta = chunk.choices[0].delta
-
-                # Handle text content
-                if delta.content:
-                    yield StreamEvent(type="text", data=delta.content)
-
-                # Handle tool calls
-                if delta.tool_calls:
-                    for tool_call in delta.tool_calls:
-                        if tool_call.id:
-                            # New tool call starting
-                            if current_tool_call:
-                                # Yield the previous one
-                                yield StreamEvent(
-                                    type="tool_use", data=current_tool_call
-                                )
-                            current_tool_call = {
-                                "id": tool_call.id,
-                                "name": tool_call.function.name or "",
-                                "arguments": tool_call.function.arguments or "",
-                            }
-                        elif current_tool_call and tool_call.function.arguments:
-                            # Continue building the current tool call
-                            current_tool_call["arguments"] += (
-                                tool_call.function.arguments
-                            )
-
-                # Check if stream is finished
-                if chunk.choices[0].finish_reason:
-                    if current_tool_call:
-                        yield StreamEvent(type="tool_use", data=current_tool_call)
-                        current_tool_call = None
+                events, current_tool_call = self._handle_stream_chunk(
+                    chunk, current_tool_call
+                )
+                for event in events:
+                    yield event
 
             yield StreamEvent(type="done")