> ## 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.

# Choosing models

> Learn how to select the right model for fine-tuning with Second

When fine-tuning large language models with Second, selecting the right base model is crucial for achieving optimal results. This guide will help you understand the available models and choose the one that best fits your specific use case.

## Available Models

Second offers a variety of large language models for fine-tuning. Each model has its own strengths and characteristics:

<CardGroup cols={2}>
  <Card title="Llama 3.1 (8B)">
    Open-source large language model by Meta AI, known for its versatility and
    strong performance across various tasks.
  </Card>

  <Card title="Mistral 7B">
    Powerful open-source model that excels in various tasks, including code and
    reasoning.
  </Card>

  <Card title="Gemma 2 (9B)">
    Lightweight, open-source model from Google. Versatile for various text
    generation tasks.
  </Card>

  <Card title="GPT-4o mini">
    Cost-efficient model optimized for speed and performance. Excels in various
    tasks while maintaining high accuracy.
  </Card>
</CardGroup>

<Tip>
  Consider each model's unique characteristics, performance metrics, and
  language support when selecting a base model for fine-tuning. Ensure the
  chosen model aligns with your specific requirements and target languages.
</Tip>

## Expert Guidance

For clients planning fine-tuning projects with budgets exceeding \$150, Second offers personalized expert guidance. Our team can provide:

* In-depth model analysis tailored to your specific use case
* Custom performance benchmarking
* Optimization strategies for cost-effective fine-tuning
* Recommendations for scaling and deployment

To access this specialized service, please contact our support team at [support@usesecond.com](mailto:support@usesecond.com?subject=Expert%20Guidance%20for%20Fine-Tuning\&body=Project%20Scope:%0D%0A%0D%0ARequirements:%0D%0A%0D%0ABudget:%0D%0A) with details about your project scope and requirements.

<Info>
  Leveraging expert advice can significantly enhance the efficiency and
  effectiveness of your fine-tuning efforts, especially for complex or
  high-impact projects.
</Info>