Open Source · framework

Use DeepSeek V3 with LlamaIndex

Updated 2026-05-21 · By XALEN

How to use DeepSeek V3 (Open Source, 671B (37B active)) with LlamaIndex. Install, authenticate, and make your first API call in minutes. Working code example included.

Model

DeepSeek V3

671B (37B active) · 128K context · $0.05 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="deepseek-v3",
    api_key="xln_test_YOUR_KEY",
    api_base="https://api.xalen.io/v1"
)

response = llm.complete("Explain DeepSeek V3")
print(response.text)

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Last updated: 2026-05-21