MLflow AI 网关用于大型语言模型

export OPENAI_API_KEY=...

endpoints:
  - name: completions
    endpoint_type: llm/v1/completions
    model:
      provider: openai
      name: text-davinci-003
      config:
        openai_api_key: $OPENAI_API_KEY

  - name: embeddings
    endpoint_type: llm/v1/embeddings
    model:
      provider: openai
      name: text-embedding-ada-002
      config:
        openai_api_key: $OPENAI_API_KEY

mlflow gateway start --config-path /path/to/config.yaml

import mlflow
from langchain.chains import LLMChain, PromptTemplate
from langchain_community.llms import Mlflow

llm = Mlflow(
    target_uri="http://127.0.0.1:5000",
    endpoint="completions",
)

llm_chain = LLMChain(
    llm=Mlflow,
    prompt=PromptTemplate(
        input_variables=["adjective"],
        template="Tell me a {adjective} joke",
    ),
)
result = llm_chain.run(adjective="funny")
print(result)

with mlflow.start_run():
    model_info = mlflow.langchain.log_model(chain, "model")

model = mlflow.pyfunc.load_model(model_info.model_uri)
print(model.predict([{"adjective": "funny"}]))

from langchain_community.embeddings import MlflowEmbeddings

embeddings = MlflowEmbeddings(
    target_uri="http://127.0.0.1:5000",
    endpoint="embeddings",
)

print(embeddings.embed_query("hello"))
print(embeddings.embed_documents(["hello"]))

from langchain_community.chat_models import ChatMlflow
from langchain.messages import HumanMessage, SystemMessage

chat = ChatMlflow(
    target_uri="http://127.0.0.1:5000",
    endpoint="chat",
)

messages = [
    SystemMessage(
        content="You are a helpful assistant that translates English to French."
    ),
    HumanMessage(
        content="Translate this sentence from English to French: I love programming."
    ),
]
print(chat(messages))