#
# Copyright (c) 2024-2026, Daily
#
# SPDX-License-Identifier: BSD 2-Clause License
#
"""Qwen LLM service implementation using OpenAI-compatible interface."""
from dataclasses import dataclass
from loguru import logger
from pipecat.services.openai.base_llm import BaseOpenAILLMService
from pipecat.services.openai.llm import OpenAILLMService
[docs]
@dataclass
class QwenLLMSettings(BaseOpenAILLMService.Settings):
"""Settings for QwenLLMService."""
pass
[docs]
class QwenLLMService(OpenAILLMService):
"""A service for interacting with Alibaba Cloud's Qwen LLM API using the OpenAI-compatible interface.
This service extends OpenAILLMService to connect to Qwen's API endpoint while
maintaining full compatibility with OpenAI's interface and functionality.
"""
# Qwen doesn't support the "developer" message role.
# This value is used by BaseOpenAILLMService when calling the adapter.
supports_developer_role = False
Settings = QwenLLMSettings
_settings: Settings
[docs]
def __init__(
self,
*,
api_key: str,
base_url: str = "https://dashscope-intl.aliyuncs.com/compatible-mode/v1",
model: str | None = None,
settings: Settings | None = None,
**kwargs,
):
"""Initialize the Qwen LLM service.
Args:
api_key: The API key for accessing Qwen's API (DashScope API key).
base_url: Base URL for Qwen API. Defaults to "https://dashscope-intl.aliyuncs.com/compatible-mode/v1".
model: The model identifier to use. Defaults to "qwen-plus".
.. deprecated:: 0.0.105
Use ``settings=QwenLLMService.Settings(model=...)`` instead.
settings: Runtime-updatable settings. When provided alongside deprecated
parameters, ``settings`` values take precedence.
**kwargs: Additional keyword arguments passed to OpenAILLMService.
"""
# 1. Initialize default_settings with hardcoded defaults
default_settings = self.Settings(model="qwen-plus")
# 2. Apply direct init arg overrides (deprecated)
if model is not None:
self._warn_init_param_moved_to_settings("model", "model")
default_settings.model = model
# 3. (No step 3, as there's no params object to apply)
# 4. Apply settings delta (canonical API, always wins)
if settings is not None:
default_settings.apply_update(settings)
super().__init__(api_key=api_key, base_url=base_url, settings=default_settings, **kwargs)
logger.info(f"Initialized Qwen LLM service with model: {self._settings.model}")
[docs]
def create_client(self, api_key=None, base_url=None, **kwargs):
"""Create OpenAI-compatible client for Qwen API endpoint.
Args:
api_key: API key for authentication. If None, uses instance default.
base_url: Base URL for the API. If None, uses instance default.
**kwargs: Additional arguments passed to the parent client creation.
Returns:
An OpenAI-compatible client configured for Qwen's API.
"""
logger.debug(f"Creating Qwen client with base URL: {base_url}")
return super().create_client(api_key, base_url, **kwargs)