Open Source · framework

Use Yi Lightning with LlamaIndex

Updated 2026-05-21 · By XALEN

How to use Yi Lightning (Open Source, 200B MoE) with LlamaIndex. Install, authenticate, and make your first API call in minutes. Working code example included.

Model

Yi Lightning

200B MoE · 128K context · $0.04 input

Framework

LlamaIndex

framework · pip install llama-index-llms-openai-like

1. Install

pip install llama-index-llms-openai-like

2. Code

from llama_index.llms.openai_like import OpenAILike

llm = OpenAILike(
    model="yi-lightning",
    api_key="xln_test_YOUR_KEY",
    api_base="https://api.xalen.io/v1"
)

response = llm.complete("Explain Yi Lightning")
print(response.text)

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Last updated: 2026-05-21