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

# Overview

> Post-training on Nebius Token Factory

Post-training in **Nebius Token Factory** lets you adapt foundation models to your data and tasks. By training on your own examples, the model learns your domain patterns directly improving accuracy, stability, and reducing prompt complexity.

[**Supervised fine-tuning**](https://docs.tokenfactory.nebius.com/post-training/how-to-fine-tune) allows you to train on large datasets without prompt-length limits. This gives you tighter control over model behavior, reduces the need for manual prompt engineering, and can lead to lower inference cost and latency.

[**Custom speculator training**](https://docs.tokenfactory.nebius.com/post-training/custom-speculator) allows you to train a drafter tuned to your own base model and workload, rather than relying on a generic speculator. This gives you higher inference throughput and lower latency during speculative decoding, driven by better token acceptance rates, while preserving the base model's output quality.\
\
Upcoming Advanced post-training options including:

* **Reinforcement Fine-tuning** (limited professional service [request access](https://nebius.com/reinforcement-fine-tuning-research-program))

<Note>
  You can currently run **long-context supervised fine-tuning** on full model weights or **LoRA adapters**.
</Note>

If you're ready to fine-tune or want to explore the workflows involved, start here:

<Columns cols={2}>
  <Card title="How to Fine-tune" icon="layer-group" href="https://docs.tokenfactory.nebius.com/post-training/how-to-fine-tune">
    Step-by-step guide to preparing data, launching a job, and evaluating results.
  </Card>

  <Card title="Models" icon="list" href="https://docs.tokenfactory.nebius.com/post-training/models">
    Supported base models for training and inference.
  </Card>

  <Card title="Datasets" icon="table" href="https://docs.tokenfactory.nebius.com/post-training/datasets">
    Create and manage datasets for training and validation.
  </Card>
</Columns>

***
