axolotl

Configure and validate Axolotl YAML workflows for LLM fine-tuning with LoRA/QLoRA and DPO/GRPO.

Updated May 26, 2026
One-click install
npx skills add https://github.com/ruiyangruiyi/hermes-agent --skill axolotl-ruiyangruiyi
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: axolotl
Source: https://github.com/ruiyangruiyi/hermes-agent/tree/main/skills/mlops/training/axolotl
Command: npx skills add https://github.com/ruiyangruiyi/hermes-agent --skill axolotl-ruiyangruiyi

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires axolotl, torch, transformers, datasets, peft, accelerate, deepspeed, and includes references (resource) components.

What problem does it solve?

Fine-tuning large language models is hard to configure correctly, especially when you need LoRA/QLoRA and preference/RL-style training like DPO or GRPO. This Skill reduces trial-and-error by translating Axolotl’s official guidance into practical configuration and implementation patterns you can apply immediately.

Core Features & Use Cases

  • Axolotl YAML Fine-Tuning Guidance: Learn how to structure and tune Axolotl config for LLM fine-tuning workflows.
  • LoRA/QLoRA and Training Paradigms: Apply setups for parameter-efficient fine-tuning plus objective families such as DPO/KTO/ORPO/GRPO.
  • Distributed Training Knobs: Use examples and constraints for FSDP, context parallelism, and saving/compression options.
  • Dataset/Tokenizer & Debug Patterns: Handle common dataset schema expectations and provide practical troubleshooting-style guidance.

Quick Start

Ask the axolotl Skill to help you generate and validate an Axolotl YAML config for a LoRA/QLoRA fine-tuning run using DPO or GRPO.

Frequently Asked Questions about axolotl

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I configure an Axolotl YAML file for LoRA fine-tuning?

Configuring an Axolotl YAML file for LoRA fine-tuning involves mapping specific configuration keys to parameter-efficient training scenarios, defining target modules and rank within the YAML structure. This Skill validates these configurations against official Axolotl documentation to ensure accurate setup.

What is the best way to set up DPO or GRPO training with Axolotl?

Setting up DPO or GRPO training with Axolotl requires accurately mapping Axolotl configuration keys to supported preference and reinforcement learning objectives. This Skill translates official guidance into practical YAML configuration patterns, reducing trial-and-error for these specific training paradigms.

Can I use FSDP and context parallelism for distributed training in Axolotl?

Yes, you can use FSDP and context parallelism for distributed training in Axolotl by setting the appropriate distributed training options in your YAML config. This Skill provides examples and constraints for configuring these distributed knobs effectively.

Does Axolotl support saving and compressing checkpoints for downstream inference?

Yes, Axolotl supports saving and compressing checkpoints for downstream inference through specific YAML configuration options. This Skill guides you in applying the correct settings to handle checkpoint compression and prepare models for inference deployment.

How do I handle dataset formats and schemas when using Axolotl for fine-tuning?

Handling dataset formats and schemas when using Axolotl for fine-tuning requires matching your dataset schema to Axolotl's expected formats. This Skill provides practical troubleshooting-style guidance to manage common dataset schema expectations and tokenizer configurations.