LlamaIndex Llms Integration: Neutrino

Installation

To install the required packages, run:

%pip install llama-index-llms-neutrino
!pip install llama-index

Setup

Create Neutrino API Key

You can create an API key by visiting platform.neutrinoapp.com. Once you have the API key, set it as an environment variable:

import os

os.environ["NEUTRINO_API_KEY"] = "<your-neutrino-api-key>"

Using Your Router

A router is a collection of LLMs that you can route queries to. You can create a router in the Neutrino dashboard or use the default router, which includes all supported models. You can treat a router as a single LLM.

Initialize Neutrino

Create an instance of the Neutrino model:

from llama_index.llms.neutrino import Neutrino

llm = Neutrino(
    # api_key="<your-neutrino-api-key>",
    # router="<your-router-id>"  # Use 'default' for the default router
)

Generate Completions

To generate a text completion for a prompt, use the complete method:

response = llm.complete("In short, a Neutrino is")
print(f"Optimal model: {response.raw['model']}")
print(response)

Chat Responses

To send a chat message and receive a response, create a ChatMessage and use the chat method:

from llama_index.core.llms import ChatMessage

message = ChatMessage(
    role="user",
    content="Explain the difference between statically typed and dynamically typed languages.",
)

resp = llm.chat([message])
print(f"Optimal model: {resp.raw['model']}")
print(resp)

Streaming Responses

To stream responses for a chat message, use the stream_chat method:

message = ChatMessage(
    role="user", content="What is the approximate population of Mexico?"
)

resp = llm.stream_chat([message])
for i, r in enumerate(resp):
    if i == 0:
        print(f"Optimal model: {r.raw['model']}")
    print(r.delta, end="")

LLM Implementation example

https://docs.llamaindex.ai/en/stable/examples/llm/neutrino/