88 lines
2.9 KiB
Python
88 lines
2.9 KiB
Python
import json
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import os
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from typing import Dict, List, Optional
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from openai import OpenAI
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from mem0.configs.llms.base import BaseLlmConfig
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from mem0.llms.base import LLMBase
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class OpenAILLM(LLMBase):
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"""
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A class to interact with OpenAI or OpenRouter APIs for generating responses using LLMs.
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"""
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def __init__(self, config: Optional[BaseLlmConfig] = None):
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"""
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Initializes the OpenAILLM instance.
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Args:
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config (Optional[BaseLlmConfig]): Configuration for the LLM, including model, API key, and base URLs.
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"""
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super().__init__(config)
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if not self.config.model:
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self.config.model = "gpt-4o-mini"
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if os.environ.get("OPENROUTER_API_KEY"): # Use OpenRouter
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self.client = OpenAI(
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api_key=os.environ.get("OPENROUTER_API_KEY"),
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base_url=self.config.openrouter_base_url
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or os.getenv("OPENROUTER_API_BASE")
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or "https://openrouter.ai/api/v1",
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)
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else:
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api_key = self.config.api_key or os.getenv("OPENAI_API_KEY")
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base_url = (
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self.config.openai_base_url
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or os.getenv("OPENAI_API_BASE")
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or "https://api.openai.com/v1"
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)
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self.client = OpenAI(api_key=api_key, base_url=base_url)
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def generate_response(
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self,
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messages: List[Dict[str, str]],
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response_format: Optional[str] = None,
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) -> str:
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"""
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Generates a response based on the provided messages using OpenAI or OpenRouter.
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Args:
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messages (List[Dict[str, str]]): A list of message dictionaries containing 'role' and 'content'.
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response_format (Optional[str]): The format of the response. Defaults to None.
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Returns:
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str: The generated response from the model.
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"""
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params = {
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"model": self.config.model,
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"messages": messages,
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"temperature": self.config.temperature,
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"max_tokens": self.config.max_tokens,
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"top_p": self.config.top_p,
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}
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if os.getenv("OPENROUTER_API_KEY"):
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openrouter_params = {}
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if self.config.models:
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openrouter_params["models"] = self.config.models
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openrouter_params["route"] = self.config.route
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params.pop("model")
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if self.config.site_url and self.config.app_name:
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extra_headers = {
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"HTTP-Referer": self.config.site_url,
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"X-Title": self.config.app_name,
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}
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openrouter_params["extra_headers"] = extra_headers
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params.update(**openrouter_params)
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if response_format:
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params["response_format"] = response_format
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response = self.client.chat.completions.create(**params)
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return response.choices[0].message.content
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