| Name | llama-index-llms-openai JSON |
| Version |
0.5.5
JSON |
| download |
| home_page | None |
| Summary | llama-index llms openai integration |
| upload_time | 2025-09-08 13:33:07 |
| maintainer | None |
| docs_url | None |
| author | llama-index |
| requires_python | <4.0,>=3.9 |
| license | None |
| keywords |
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| VCS |
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| bugtrack_url |
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| requirements |
No requirements were recorded.
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No Travis.
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|
# 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 is ")
for r in resp:
print(r.delta, end="")
```
### Stream Chat
To stream chat responses, use the `stream_chat` method:
```python
from llama_index.llms.openai import OpenAI
from llama_index.core.llms import ChatMessage
llm = OpenAI()
messages = [
ChatMessage(
role="system", content="You are a pirate with a colorful personality."
),
ChatMessage(role="user", content="What is your name?"),
]
resp = llm.stream_chat(messages)
for r in resp:
print(r.delta, end="")
```
## Configure Model
You can specify a particular model when creating the `OpenAI` instance:
```python
llm = OpenAI(model="gpt-3.5-turbo")
resp = llm.complete("Paul Graham is ")
print(resp)
messages = [
ChatMessage(
role="system", content="You are a pirate with a colorful personality."
),
ChatMessage(role="user", content="What is your name?"),
]
resp = llm.chat(messages)
print(resp)
```
## Asynchronous Usage
You can also use asynchronous methods for completion:
```python
from llama_index.llms.openai import OpenAI
llm = OpenAI(model="gpt-3.5-turbo")
resp = await llm.acomplete("Paul Graham is ")
print(resp)
```
## Set API Key at a Per-Instance Level
If desired, you can have separate LLM instances use different API keys:
```python
from llama_index.llms.openai import OpenAI
llm = OpenAI(model="gpt-3.5-turbo", api_key="BAD_KEY")
resp = OpenAI().complete("Paul Graham is ")
print(resp)
```
### LLM Implementation example
https://docs.llamaindex.ai/en/stable/examples/llm/openai/
Raw data
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"description": "# LlamaIndex Llms Integration: Openai\n\n## Installation\n\nTo install the required package, run:\n\n```bash\n%pip install llama-index-llms-openai\n```\n\n## Setup\n\n1. Set your OpenAI API key as an environment variable. You can replace `\"sk-...\"` with your actual API key:\n\n```python\nimport os\n\nos.environ[\"OPENAI_API_KEY\"] = \"sk-...\"\n```\n\n## Basic Usage\n\n### Generate Completions\n\nTo generate a completion for a prompt, use the `complete` method:\n\n```python\nfrom llama_index.llms.openai import OpenAI\n\nresp = OpenAI().complete(\"Paul Graham is \")\nprint(resp)\n```\n\n### Chat Responses\n\nTo send a chat message and receive a response, create a list of `ChatMessage` instances and use the `chat` method:\n\n```python\nfrom llama_index.core.llms import ChatMessage\n\nmessages = [\n ChatMessage(\n role=\"system\", content=\"You are a pirate with a colorful personality.\"\n ),\n ChatMessage(role=\"user\", content=\"What is your name?\"),\n]\nresp = OpenAI().chat(messages)\nprint(resp)\n```\n\n## Streaming Responses\n\n### Stream Complete\n\nTo stream responses for a prompt, use the `stream_complete` method:\n\n```python\nfrom llama_index.llms.openai import OpenAI\n\nllm = OpenAI()\nresp = llm.stream_complete(\"Paul Graham is \")\nfor r in resp:\n print(r.delta, end=\"\")\n```\n\n### Stream Chat\n\nTo stream chat responses, use the `stream_chat` method:\n\n```python\nfrom llama_index.llms.openai import OpenAI\nfrom llama_index.core.llms import ChatMessage\n\nllm = OpenAI()\nmessages = [\n ChatMessage(\n role=\"system\", content=\"You are a pirate with a colorful personality.\"\n ),\n ChatMessage(role=\"user\", content=\"What is your name?\"),\n]\nresp = llm.stream_chat(messages)\nfor r in resp:\n print(r.delta, end=\"\")\n```\n\n## Configure Model\n\nYou can specify a particular model when creating the `OpenAI` instance:\n\n```python\nllm = OpenAI(model=\"gpt-3.5-turbo\")\nresp = llm.complete(\"Paul Graham is \")\nprint(resp)\n\nmessages = [\n ChatMessage(\n role=\"system\", content=\"You are a pirate with a colorful personality.\"\n ),\n ChatMessage(role=\"user\", content=\"What is your name?\"),\n]\nresp = llm.chat(messages)\nprint(resp)\n```\n\n## Asynchronous Usage\n\nYou can also use asynchronous methods for completion:\n\n```python\nfrom llama_index.llms.openai import OpenAI\n\nllm = OpenAI(model=\"gpt-3.5-turbo\")\nresp = await llm.acomplete(\"Paul Graham is \")\nprint(resp)\n```\n\n## Set API Key at a Per-Instance Level\n\nIf desired, you can have separate LLM instances use different API keys:\n\n```python\nfrom llama_index.llms.openai import OpenAI\n\nllm = OpenAI(model=\"gpt-3.5-turbo\", api_key=\"BAD_KEY\")\nresp = OpenAI().complete(\"Paul Graham is \")\nprint(resp)\n```\n\n### LLM Implementation example\n\nhttps://docs.llamaindex.ai/en/stable/examples/llm/openai/\n",
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