LLM unified service


Keywords
llm, nlp, openai-api, transformer
Install
pip install modelz-llm==23.7.4

Documentation

Modelz LLM

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Modelz LLM is an inference server that facilitates the utilization of open source large language models (LLMs), such as FastChat, LLaMA, and ChatGLM, on either local or cloud-based environments with OpenAI compatible API.

Features

  • OpenAI compatible API: Modelz LLM provides an OpenAI compatible API for LLMs, which means you can use the OpenAI python SDK or LangChain to interact with the model.
  • Self-hosted: Modelz LLM can be easily deployed on either local or cloud-based environments.
  • Open source LLMs: Modelz LLM supports open source LLMs, such as FastChat, LLaMA, and ChatGLM.
  • Cloud native: We provide docker images for different LLMs, which can be easily deployed on Kubernetes, or other cloud-based environments (e.g. Modelz)

Quick Start

Install

pip install modelz-llm
# or install from source
pip install git+https://github.com/tensorchord/modelz-llm.git[gpu]

Run the self-hosted API server

Please first start the self-hosted API server by following the instructions:

modelz-llm -m bigscience/bloomz-560m --device cpu

Currently, we support the following models:

Model Name Huggingface Model Docker Image Recommended GPU
FastChat T5 lmsys/fastchat-t5-3b-v1.0 modelzai/llm-fastchat-t5-3b Nvidia L4(24GB)
Vicuna 7B Delta V1.1 lmsys/vicuna-7b-delta-v1.1 modelzai/llm-vicuna-7b Nvidia A100(40GB)
LLaMA 7B decapoda-research/llama-7b-hf modelzai/llm-llama-7b Nvidia A100(40GB)
ChatGLM 6B INT4 THUDM/chatglm-6b-int4 modelzai/llm-chatglm-6b-int4 Nvidia T4(16GB)
ChatGLM 6B THUDM/chatglm-6b modelzai/llm-chatglm-6b Nvidia L4(24GB)
Bloomz 560M bigscience/bloomz-560m modelzai/llm-bloomz-560m CPU
Bloomz 1.7B bigscience/bloomz-1b7 CPU
Bloomz 3B bigscience/bloomz-3b Nvidia L4(24GB)
Bloomz 7.1B bigscience/bloomz-7b1 Nvidia A100(40GB)

Use OpenAI python SDK

Then you can use the OpenAI python SDK to interact with the model:

import openai
openai.api_base="http://localhost:8000"
openai.api_key="any"

# create a chat completion
chat_completion = openai.ChatCompletion.create(model="any", messages=[{"role": "user", "content": "Hello world"}])

Integrate with Langchain

You could also integrate modelz-llm with langchain:

import openai
openai.api_base="http://localhost:8000"
openai.api_key="any"

from langchain.llms import OpenAI

llm = OpenAI()

llm.generate(prompts=["Could you please recommend some movies?"])

Deploy on Modelz

You could also deploy the modelz-llm directly on Modelz:

Supported APIs

Modelz LLM supports the following APIs for interacting with open source large language models:

  • /completions
  • /chat/completions
  • /embeddings
  • /engines/<any>/embeddings
  • /v1/completions
  • /v1/chat/completions
  • /v1/embeddings

Acknowledgements

  • FastChat for the prompt generation logic.
  • Mosec for the inference engine.