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Best AI Tools to Fine-tune AI models

Train or adapt existing AI models using custom datasets and techniques.

Showing 12 of 31 tools

transformers
Code
2018-10-29
transformers logo
transformers
163K

🤗 Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training.

FreeOpen tool →
LLMs-from-scratch
AI Dev
2023-07-23
LLMs-from-scratch logo
LLMs-from-scratch
100K

Implement a ChatGPT-like LLM in PyTorch from scratch, step by step

Pricing variesOpen tool →
llm-course
Code
2023-06-17
llm-course logo
llm-course
81.3K

Course to get into Large Language Models (LLMs) with roadmaps and Colab notebooks.

Pricing variesOpen tool →
LlamaFactory
AI Dev
2023-05-28
LlamaFactory logo
LlamaFactory
73.6K

Unified Efficient Fine-Tuning of 100+ LLMs & VLMs (ACL 2024)

Pricing variesOpen tool →
unsloth
AI Dev
2023-11-29
unsloth logo
unsloth
69K

Unsloth is a local UI for training and running Gemma 4, Qwen3.6, DeepSeek, Kimi, GLM and other models.

Pricing variesOpen tool →
ai-engineering-from-scratch
Code
2026-03-18
ai-engineering-from-scratch logo
ai-engineering-from-scratch
44.2K

Learn it. Build it. Ship it for others.

Pricing variesOpen tool →
ray
Code
2016-10-25
ray logo
ray
43.4K

Ray is an AI compute engine. Ray consists of a core distributed runtime and a set of AI Libraries for accelerating ML workloads.

Pricing variesOpen tool →
ColossalAI
AI Dev
2021-10-28
ColossalAI logo
ColossalAI
41.4K

Making large AI models cheaper, faster and more accessible

Pricing variesOpen tool →
graphrag
AI Dev
2024-03-27
graphrag logo
graphrag
34.9K

A modular graph-based Retrieval-Augmented Generation (RAG) system

Pricing variesOpen tool →
netron
Writing
2010-12-26
netron logo
netron
33.3K

Visualizer for neural network, deep learning and machine learning models

Pricing variesOpen tool →
sglang
Writing
2024-01-08
sglang logo
sglang
30.8K

SGLang is a high-performance serving framework for large language models and multimodal models.

Pricing variesOpen tool →
llama-cookbook
AI Dev
2023-07-17
llama-cookbook logo
llama-cookbook
18.5K

Welcome to the Llama Cookbook! This is your go to guide for Building with Llama: Getting started with Inference, Fine-Tuning, RAG. We also show you how to solve end to end problems using Llama model family and using them on various provider services

Freemium • $0Open tool →

AI model fine-tuning adapts a pretrained model to a specific domain, style, language, or task using your own examples. The tools on this page cover dataset preparation, supervised fine-tuning, parameter-efficient methods such as LoRA, experiment tracking, evaluation, and deployment.

When fine-tuning is the right approach

Fine-tuning is useful when prompting or retrieval alone cannot produce consistent behavior, specialized terminology, structured output, or a distinctive style. It is not always the first step. Start with a strong baseline prompt and evaluation set, then compare fine-tuning with retrieval-augmented generation. Retrieval is often better for frequently changing facts; fine-tuning is better for learned behavior and repeated task patterns.

How to choose a fine-tuning platform

Compare supported base models, dataset formats, LoRA and QLoRA options, GPU requirements, training controls, monitoring, checkpoints, privacy, and export portability. Estimate the full cost of data cleaning, training, evaluation, and inference—not only the training run. Use separate validation data, test for regressions and unsafe behavior, and confirm that the base model license permits your intended commercial or production use.

FAQ

How much data is needed to fine-tune an AI model?

It depends on the task and model. A focused, high-quality dataset of hundreds or thousands of examples can outperform a much larger noisy dataset.

What is the difference between LoRA and full fine-tuning?

LoRA trains a small set of added parameters and usually needs less compute and storage. Full fine-tuning updates the entire model and offers more flexibility at a higher cost.