Manifest

This notebook goes over how to use Manifest and LangChain.

For more detailed information on manifest, and how to use it with local huggingface models like in this example, see https://github.com/HazyResearch/manifest

Another example of using Manifest with Langchain.

%pip install --upgrade --quiet  manifest-ml

from langchain_community.llms.manifest import ManifestWrapper
from manifest import Manifest

API Reference:ManifestWrapper

manifest = Manifest(
    client_name="huggingface", client_connection="http://127.0.0.1:5000"
)
print(manifest.client_pool.get_current_client().get_model_params())

llm = ManifestWrapper(
    client=manifest, llm_kwargs={"temperature": 0.001, "max_tokens": 256}
)

# Map reduce example
from langchain.chains.mapreduce import MapReduceChain
from langchain_core.prompts import PromptTemplate
from langchain_text_splitters import CharacterTextSplitter

_prompt = """Write a concise summary of the following:


{text}


CONCISE SUMMARY:"""
prompt = PromptTemplate.from_template(_prompt)

text_splitter = CharacterTextSplitter()

mp_chain = MapReduceChain.from_params(llm, prompt, text_splitter)

API Reference:MapReduceChain | PromptTemplate | CharacterTextSplitter

with open("../../how_to/state_of_the_union.txt") as f:
    state_of_the_union = f.read()
mp_chain.run(state_of_the_union)

'President Obama delivered his annual State of the Union address on Tuesday night, laying out his priorities for the coming year. Obama said the government will provide free flu vaccines to all Americans, ending the government shutdown and allowing businesses to reopen. The president also said that the government will continue to send vaccines to 112 countries, more than any other nation. "We have lost so much to COVID-19," Trump said. "Time with one another. And worst of all, so much loss of life." He said the CDC is working on a vaccine for kids under 5, and that the government will be ready with plenty of vaccines when they are available. Obama says the new guidelines are a "great step forward" and that the virus is no longer a threat. He says the government is launching a "Test to Treat" initiative that will allow people to get tested at a pharmacy and get antiviral pills on the spot at no cost. Obama says the new guidelines are a "great step forward" and that the virus is no longer a threat. He says the government will continue to send vaccines to 112 countries, more than any other nation. "We are coming for your'

Compare HF Models

from langchain.model_laboratory import ModelLaboratory

manifest1 = ManifestWrapper(
    client=Manifest(
        client_name="huggingface", client_connection="http://127.0.0.1:5000"
    ),
    llm_kwargs={"temperature": 0.01},
)
manifest2 = ManifestWrapper(
    client=Manifest(
        client_name="huggingface", client_connection="http://127.0.0.1:5001"
    ),
    llm_kwargs={"temperature": 0.01},
)
manifest3 = ManifestWrapper(
    client=Manifest(
        client_name="huggingface", client_connection="http://127.0.0.1:5002"
    ),
    llm_kwargs={"temperature": 0.01},
)
llms = [manifest1, manifest2, manifest3]
model_lab = ModelLaboratory(llms)

API Reference:ModelLaboratory

model_lab.compare("What color is a flamingo?")

Input:
What color is a flamingo?

ManifestWrapper
Params: {'model_name': 'bigscience/T0_3B', 'model_path': 'bigscience/T0_3B', 'temperature': 0.01}
pink

ManifestWrapper
Params: {'model_name': 'EleutherAI/gpt-neo-125M', 'model_path': 'EleutherAI/gpt-neo-125M', 'temperature': 0.01}
A flamingo is a small, round

ManifestWrapper
Params: {'model_name': 'google/flan-t5-xl', 'model_path': 'google/flan-t5-xl', 'temperature': 0.01}
pink

Related

• LLM conceptual guide
• LLM how-to guides