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@langchain/openai

OpenAI integrations for LangChain.js

  • 0.3.14
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What is @langchain/openai?

@langchain/openai is an npm package that provides tools and utilities for integrating OpenAI's language models into your applications. It allows you to easily interact with OpenAI's API, enabling functionalities such as text generation, conversation handling, and more.

What are @langchain/openai's main functionalities?

Text Generation

This feature allows you to generate text based on a given prompt using OpenAI's language models. The code sample demonstrates how to use the `generate` method to create text.

const { OpenAI } = require('@langchain/openai');

const openai = new OpenAI('your-api-key');

async function generateText(prompt) {
  const response = await openai.generate({
    model: 'text-davinci-003',
    prompt: prompt,
    max_tokens: 100
  });
  console.log(response.data.choices[0].text);
}

generateText('Once upon a time');

Conversation Handling

This feature allows you to handle conversations by sending a series of messages to OpenAI's conversational models. The code sample demonstrates how to use the `converse` method to manage a conversation.

const { OpenAI } = require('@langchain/openai');

const openai = new OpenAI('your-api-key');

async function handleConversation(messages) {
  const response = await openai.converse({
    model: 'gpt-3.5-turbo',
    messages: messages
  });
  console.log(response.data.choices[0].message.content);
}

const messages = [
  { role: 'system', content: 'You are a helpful assistant.' },
  { role: 'user', content: 'What is the weather like today?' }
];

handleConversation(messages);

Custom Fine-Tuning

This feature allows you to fine-tune OpenAI's models with custom training data. The code sample demonstrates how to use the `fineTune` method to train a model with specific data.

const { OpenAI } = require('@langchain/openai');

const openai = new OpenAI('your-api-key');

async function fineTuneModel(trainingData) {
  const response = await openai.fineTune({
    model: 'text-davinci-003',
    training_data: trainingData
  });
  console.log(response.data);
}

const trainingData = [
  { prompt: 'Translate the following English text to French: "Hello, world!"', completion: 'Bonjour, le monde!' }
];

fineTuneModel(trainingData);

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Package last updated on 18 Nov 2024

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