MosaicML

MosaicML 提供了一个托管的推理服务。您可以使用各种开源模型，或者部署自己的模型。

这个示例演示了如何使用 LangChain 与 MosaicML 推理服务进行文本嵌入交互。

# 注册账号：https://forms.mosaicml.com/demo?utm_source=langchain
from getpass import getpass
MOSAICML_API_TOKEN = getpass()

import os
os.environ["MOSAICML_API_TOKEN"] = MOSAICML_API_TOKEN

from langchain_community.embeddings import MosaicMLInstructorEmbeddings

embeddings = MosaicMLInstructorEmbeddings(
    query_instruction="Represent the query for retrieval: "
)

query_text = "This is a test query."
query_result = embeddings.embed_query(query_text)

document_text = "This is a test document."
document_result = embeddings.embed_documents([document_text])

import numpy as np
query_numpy = np.array(query_result)
document_numpy = np.array(document_result[0])
similarity = np.dot(query_numpy, document_numpy) / (
    np.linalg.norm(query_numpy) * np.linalg.norm(document_numpy)
)
print(f"Cosine similarity between document and query: {similarity}")