---
id: "hugging-face-trl-transformers-reinforcement-learning"
title: "TRL - Transformers Reinforcement Learning"
creator: "Hugging Face"
creator_url: "https://huggingface.co/docs/trl/index"
url: "https://huggingface.co/docs/trl/index"
level: "advanced"
level_max: null
category: "model-training"
subcategory: "post-training-rl"
region: "other"
license: "closed"
license_scope: "linked-resource"
models: ["any"]
source_date: null
date_added: "2026-10-18"
---

[Model Training](/model-training/index.md)

# TRL - Transformers Reinforcement Learning

by [Hugging Face](https://huggingface.co/docs/trl/index)

[Read the original →](https://huggingface.co/docs/trl/index)

Find training interfaces for supervised and preference-based adaptation.

TRL documents trainers for methods including supervised fine-tuning, DPO, GRPO and reward modeling. It is useful when mapping a post-training objective onto an implementation and its data requirements.

Level: [Advanced](/levels/index.md#advanced)
Models: any
Category: [Model Training](/model-training/index.md)
Tags: 
Source date: date not stated
Added: 2026-10-18
Last verified: 2026-10-18
Status: ok
Prerequisites: Requires implementation experience or critical reading of technical methods and system trade-offs.
Subcategory: [post training rl](/model-training/post-training-rl/index.md)
Region: other
Original language: en
Access: free
Resource reuse: closed: No general open-reuse grant established from the inspected page. Closed is the conservative index bucket, not a legal finding; the resource is publicly readable. [Facet definitions](/about/index.md#facets)

Summary in our own words. Rights remain with the original creator. [Credit and correction policy](/about/index.md#credit-policy).

[Plain-text Markdown copy](/model-training/post-training-rl/hugging-face-trl-transformers-reinforcement-learning/index.md)