---
id: llama-index-llms-openai
version: "0.7.10"
license: MIT
license_treatment: permissive
maintenance: active
---

# llama-index-llms-openai — llama-index llms openai integration

License: permissive · Maintenance: active · Popularity: top 1,000 on PyPI

## Install

pip install llama-index-llms-openai
uv add llama-index-llms-openai
poetry add llama-index-llms-openai

## Description

# LlamaIndex Llms Integration: Openai

## Installation

To install the required package, run:

```bash
%pip install llama-index-llms-openai
```

## Setup

1. Set your OpenAI API key as an environment variable. You can replace `"sk-..."` with your actual API key:

```python
import os

os.environ["OPENAI_API_KEY"] = "sk-..."
```

## Basic Usage

### Generate Completions

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

```python
from llama_index.llms.openai import OpenAI

resp = OpenAI().complete("Paul Graham is ")
print(resp)
```

### Chat Responses

To send a chat message and receive a response, create a list of `ChatMessage` instances and use the `chat` method:

```python
from llama_index.core.llms import ChatMessage

messages = [
    ChatMessage(
        role="system", content="You are a pirate with a colorful personality."
    ),
    ChatMessage(role="user", content="What is your name?"),
]
resp = OpenAI().chat(messages)
print(resp)
```

## Streaming Responses

### Stream Complete

To stream responses for a prompt, use the `stream_complete` method:

```python
from llama_index.llms.openai import OpenAI

llm = OpenAI()
resp = llm.stream_complete("Paul Graham...

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