> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usesecond.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Getting started

> Learn how to fine-tune large language models using Second

Welcome to Second, the AI-first Infrastructure Platform that simplifies complex AI tasks. This guide will help you get started with our fine-tuning product, enabling you to create custom AI models tailored to your specific needs.

## What is Second Fine-Tuning?

Second's fine-tuning product is part of our core platform, designed to help developers and organizations create advanced AI solutions efficiently. It allows you to take pre-trained large language models and customize them for your specific use cases.

## Prerequisites

Before you begin, make sure you have:

1. A Second account (Sign up at [console.usesecond.com](https://console.usesecond.com) if you haven't already)
2. A dataset prepared for fine-tuning

<CardGroup cols={2}>
  <Card title="Preparing datasets for fine-tuning" icon="binary" href="/fine-tuning/preparing-datasets">
    Learn how to structure and format your data for optimal fine-tuning results
  </Card>

  <Card title="Choosing models" icon="brain-circuit" href="/fine-tuning/choosing-models">
    Explore the available models and choose the one that best fits your needs
  </Card>
</CardGroup>