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langchain实现的闭源模型统一API

Project description

LangChain 实现闭源大模型的统一

本项目的目的是将闭源大模型,如科大星火 文心一言 通义千问等闭源大模型进行Langchain的实现,即继承了langchain的BaseChatModel的实现。

(仓库初步构建,欢迎贡献源码。)

背景

随着AIGC的快速发展,市面上出现了越来越多的大模型,其中包括开源大模型如qwen,baichuan,chatglm等,开源的模型已经有很好社区来支持openai格式的API接口,之所以使用openai格式的API接口,很重要的一个因素是可以轻松的使用langchain(目前最流行)。但是闭源大模型由于接口不统一,导致很难使用langchain提供的生态,因为我才有想法构建本项目。

支持的闭源模型

  • 讯飞星火
  • 文心一言
  • 通义千问
  • 百川

安装(要用官方源,国内源可能同步更新不及时)

pip install oneapi2langchain -i https://pypi.org/simple/

示例代码

from oneapi2langchain import ChatSpark  # 完全支持langchain
from dotenv import load_dotenv  # 加载 APP_ID 等配置
load_dotenv()

if __name__ == "__main__":
  
    llm = ChatSpark()
    # # 测试 string  ok
    ret = llm.predict("你是谁",stop=['科大讯飞'])
    print(ret)
    # 测试 message  ok
    # ret = llm.predict_messages([ChatMessage(role="user",content="你是谁")])
    # print(ret)
    # 测试 invoke  ok
    # ret = llm.invoke("你是谁")
    # print(ret)
    # 测试流式
    # for i in llm.stream("你是谁"):
    #     print(i)

致谢

spark-ai-python 参考并引用

langchain 参考并引用

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