The 103 Best AI Model Fine-tuning Tools for Your Problem in 2026

OpenAI, Hugging Face, Jina AI, DeepSeek, Google DeepMind, PromptFix, Kaggle, OpenRouter, Treppan Technologies, Meta AI Developer Platform are strong paid/free AI Model Fine-tuning options for common problems.

OpenAI

OpenAI is an AI research and deployment company focused on ensuring artificial general intelligence benefits all of humanity.

openai.com

OpenAI

15.0

Hugging Face

The AI community platform for collaborating on models, datasets, and applications.

huggingface.co

05.0

Jina AI

Jina AI provides embeddings, rerankers, web reader, and small language models to build powerful search applications.

jina.ai

2020-2026. This website and all associated co

05.0

DeepSeek

DeepSeek focuses on researching world-leading general artificial intelligence underlying models and technologies, providing free conversation and API access.

deepseek.com

2026 杭州深度求索人工智能基础技术研究有限公司

🇨🇳China

05.0

Google DeepMind

Build AI responsibly to benefit humanity

deepmind.google

Google DeepMind

05.0

PromptFix

AI prompt engineering platform to score, verify, and improve prompts for reliable AI outputs.

promptfix.online

PromptFix

05.0

Kaggle

Kaggle is the world's AI proving ground, where 32M+ builders, researchers, and labs evaluate agents, models, and frontier technology through crowdsourced benchmarks, competitions, and hackathons.

kaggle.com

05.0

OpenRouter

The unified interface for LLMs. Access 400+ models from 70+ providers through a single API.

openrouter.ai

OpenRouter

05.0

Treppan Technologies

Treppan Technologies is Uganda's leading AI startup offering AI development, chatbot development, and AI consultation services.

treppantechnologies.com

Treppan Technologies

🇺🇬Uganda

05.0

Meta AI Developer Platform

Build with Meta's AI models and tools, including Muse Spark and Muse Code.

llama.meta.com

Products & Solutions for AI Developers | Meta

05.0

Google AI Studio

The fastest path from prompt to production with Gemini

aistudio.google.com

05.0

Cohere

Cohere builds enterprise AI models and solutions for secure, private, and customizable AI deployment.

cohere.com

Cohere

05.0

Modular

Unified AI inference stack from custom GPU kernels to production cloud serving on NVIDIA, AMD, and other accelerators.

modular.com

Modular

🇺🇸United States

05.0

fal

Generative media platform for developers to run image, video, 3D, and audio models.

fal.ai

Features and Labels

🇺🇸United States

05.0

CompactifAI by Multiverse Computing

Multiverse Computing compresses large AI models for efficient, sovereign deployment on cloud, data centers, and edge devices.

multiversecomputing.com

Multiverse Computing

🇪🇸Spain

05.0

智谱大模型开放平台

Zhipu AI Large Model Open Platform is a new generation of domestically developed general-purpose AI large model open platform, providing GLM series models and API services.

bigmodel.cn

2026 北京智谱华章科技股份有限公司

🇨🇳China

05.0

Scale AI

Scale AI provides reliable AI systems for critical decisions, offering data, evaluations, and full-stack AI solutions for enterprises and governments.

scale.com

Scale AI

🇺🇸United States

05.0

Letta Agent

Letta is an AI research lab building self-improving agents with persistent memory, identity, and continual learning.

letta.com

Letta

🇺🇸United States

05.0

Reflection 70B

Reflection 70B is an open-source LLM based on Llama 70B with self-correction, outperforming GPT-4 in benchmarks.

reflection70b.net

05.0

Robi Labs

Robi Labs designs reasoning engines, multimodal interfaces, and agent infrastructure for teams needing depth, not demos.

robiai.com

Robi Labs

05.0

MiniMax

MiniMax is a global AI foundation model company building multimodal models and AI-native products toward AGI.

minimax.io

MiniMax

05.0

PyTorch

PyTorch is an open-source deep learning framework for building and training neural networks, backed by the PyTorch Foundation.

pytorch.org

PyTorch

05.0

Parea AI

Experimentation and human annotation platform for AI teams to build production-ready LLM applications.

parea.ai

05.0

Replicate

Run and fine-tune open-source machine learning models with a cloud API, all with one line of code.

replicate.com

05.0

Fireworks

Fireworks is a state-of-the-art AI training and inference platform that transforms open models into specialized intelligence.

fireworks.ai

Fireworks AI

05.0

Abacus.AI

The world's first AI super assistant for professionals and enterprises, automating work with an all-in-one AI platform.

abacus.ai

Abacus.AI

05.0

BytePlus

AI-Native Cloud for Enterprise Growth: Build, deploy, and scale AI with cutting-edge models, tools, and infrastructure.

byteplus.com

05.0

书生

书生通用大模型体系是由上海人工智能实验室打造的开源大模型平台，提供语言、多模态、气象、金融等多种垂直领域AI模型

intern-ai.org.cn

🇨🇳China

05.0

FlexAI

FlexAI is an agent-native AI infrastructure platform offering OpenAI-compatible inference across 20+ open models, from serverless to dedicated endpoints and private cloud.

flex.ai

FlexAI

05.0

ModelScope 魔搭社区

ModelScope——汇聚各领域先进的机器学习模型，提供模型探索体验、推理、训练、部署和应用的一站式服务。

modelscope.cn

2022-2026 ModelSco

05.0

商汤科技 SenseTime

A globally leading artificial intelligence company, specializing in generative AI, vision AI, and AI computing infrastructure, providing core products such as the SenseNova large model and SenseCore AI infrastructure.

sensetime.com

🇨🇳China

05.0

Machine Learning Mastery

Making developers awesome at machine learning.

machinelearningmastery.com

MachineLearningMastery.com

05.0

Keras

Keras is a deep learning API designed for human beings, not machines, focusing on debugging speed, code elegance, and maintainability.

keras.io

05.0

阶跃星辰

StepFun is dedicated to developing proprietary super models, offering Step series language, speech, and multimodal models to help build AI applications.

stepfun.com

2023 上海阶跃星辰智能科技股份有限公司

🇨🇳China

05.0

TypeSafe AI

TypeSafe AI builds System One Models that return typed, calibrated decisions for machine-native automation.

typesafe.ai

05.0

Lambda AI Infrastructure

AI compute in the cloud: rent NVIDIA GPUs and supercomputers for training and inference.

lambda.ai

Lambda

🇺🇸United States

05.0

提示工程指南

The Prompt Engineering Guide is a comprehensive learning resource for prompt engineering, covering techniques, applications, models, and tools.

promptingguide.ai

DAIR.AI

05.0

fast.ai

fast.ai makes deep learning accessible through free courses, software libraries, and research for coders of all backgrounds.

fast.ai

05.0

Unsloth

Unsloth is an open-source, no-code web UI for training, running and exporting open models in one unified local interface.

unsloth.ai

05.0

NepaliGPT

Nepal's first sovereign AI platform, powered by Nepal-focused language models for communication, productivity, and innovation in Nepali.

nepaligpt.com

🇳🇵Nepal

05.0

Build Your Own AI

A developer's guide to building real-world AI applications with LLMs, covering core concepts and practical patterns.

buildown.ai

Sebastian Wessel

05.0

Deeplearning4j

Comprehensive documentation for Eclipse Deeplearning4j and its ecosystem — ND4J, SameDiff, DataVec, Keras Import, Python4J, and more

deeplearning4j.konduit.ai

05.0

模力方舟（Gitee AI）

Gather the latest and hottest AI models, provide one-stop services for model experience, inference, training, deployment, and application, offer abundant computing power, and strive to be the best AI community in China.

ai.gitee.com

2026 moark.co

🇨🇳China

05.0

飞桨PaddlePaddle

源于产业实践的开源深度学习平台，致力于让深度学习技术的创新与应用更简单。

paddlepaddle.org.cn

PaddlePaddle developers

🇨🇳China

05.0

Monostate

Monostate trains custom AI models on your proprietary data, from fine-tuning with RLHF to open-source training frameworks.

monostate.ai

Monostate

🇺🇸United States

05.0

Label Studio

Open source multi-modal data labeling and annotation platform for AI evaluation, RLHF, computer vision, document AI, NLP, audio transcription, and more.

labelstud.io

Label Studio

05.0

千问AI平台

Qianwen AI Platform is a brand-new platform built for Agents, offering model discovery, online trial, API access, Skills, CLI, usage and cost management capabilities, helping users quickly move from model selection to real development and production use.

qianwenai.com

05.0

QVAC

Tether's open-source, decentralized local AI SDK that runs text, vision and audio models entirely on-device with no cloud or API keys.

qvac.tether.io

Tether

🇺🇸United States

05.0

GMI Cloud

AI cloud platform for production workloads with serverless inference, dedicated NVIDIA GPU clusters, and agent runtime.

gmicloud.ai

GMI Computing

🇺🇸United States

05.0

Varo Cloud

Generative AI cloud platform offering 500+ models for image, video, and audio creation.

varo.cloud

Varo.cloud

05.0

Scenario

The Creative AI Infrastructure: build custom workflows across image, video, audio and 3D.

scenario.com

Scenario

05.0

LLaMA Factory Online / Lab4AI

The LLaMA Factory Online / Lab4AI platform has officially ceased operations, and users are recommended to migrate to the Alaya NeW platform.

lab4ai.cn

05.0

AutoScientist by Adaption Labs

Adaptive AI that continuously learns, adapting to any industry or language.

adaptionlabs.ai

Adaption Labs

🇺🇸United States

05.0

昇思MindSpore

Huawei's open-source self-developed full-scenario AI framework, supporting device-edge-cloud deployment, with features such as automatic differentiation and parallel training.

mindspore.cn

MindSpore 2026 粤A2-20044005号隐私声明法律声明关于co

15.0

Edge Impulse

Edge Impulse is an MLOps platform for developing, deploying, and monitoring edge AI and physical AI solutions on any edge device.

edgeimpulse.com

Edge Impulse

🇺🇸United States

05.0

Seed by ByteDance

ByteDance Seed team is dedicated to exploring general intelligence, with research directions covering LLM, speech, vision, world models, etc., and has released multiple cutting-edge AI models.

seed.bytedance.com

🇨🇳China

05.0

BAAI智源研究院

BAAI is a new type of research institution in the field of artificial intelligence, bringing together top international AI scholars, focusing on core technologies and original innovation, and promoting five major source innovations.

baai.ac.cn

北京智源人工智能研究院

🇨🇳China

05.0

Synexa AI

Deploy AI models effortlessly with Synexa's revolutionary one-line solution.

synexa.ai

05.0

Novita AI

AI-Native Cloud for Builders and Agents: Run models, scale GPUs, and build AI agents on one platform.

omniinfer.io

Novita AI

05.0

PlusB

PlusB deploys LLMs and custom AI models on your infrastructure with zero data retention.

plusb.in

05.0