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Documentation Index

Fetch the complete documentation index at: https://laminar.sh/docs/llms.txt

Use this file to discover all available pages before exploring further.

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Overview

LiteLLM is a framework/library for building LLM applications that simplifies accessing many models across different providers.

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Default configuration

1

Ensure you have the latest version of Laminar

pip install -U lmnr[all]
2

Initialize Laminar

Laminar auto-instruments LiteLLM. No callback is required.
import litellm
from lmnr import Laminar

Laminar.initialize(project_api_key="LMNR_PROJECT_API_KEY")
3
LaminarLiteLLMCallback is deprecated and does nothing. Remove it if you already use it.
4

Run your code and see traces in Laminar

Example code:
import litellm
from lmnr import Laminar

Laminar.initialize(project_api_key="LMNR_PROJECT_API_KEY")

response = litellm.completion(
    model="gpt-4.1-nano",
    messages=[
      {"role": "user", "content": "What is the capital of France?"}
    ],
)
LiteLLM trace