Fine-tuning24 of 27,449 tools

Filed under Fine-tuning by what their own homepage shows, ranked by who uses them among those still maintained.

A tag is one of thirty-odd words from a closed list, chosen by the same reader from the same page as the line — never a keyword the vendor supplied.

Describe what you need

beta

A sentence or two about the job. We read it into the catalogue's own words, then ask about every tool that fits them.

Ranked by use

Price

What it doesAgents4 RAG4 Evaluation3

Figure and bar: visits/mo, estimate · year: online since

#1
Krea Creative & media
Generates images and video in a node-based editor, with moodboards and custom LoRA training.
171k
Active
From $5/mo
#2
Together AI LLM operations
Runs open-source language models with serverless inference, batch processing, and GPU clusters.
32.7k
Active
2022
#3
Fireworks AI LLM operations
Hosts open-weight language and image models for fast inference via API, with fine-tuning and dedicated GPU deployments.
8.7k
Active
From $8/mo
#4
Adaption Developer tools
Builds AI systems that continuously learn and adapt to new data and use cases without retraining.
1.1k
Active
2025
#5
OpenWakeWord Security MCP · open
Trains custom wake word detection models in 20 languages and exports them as ONNX for on-device use.
381
Active
#6
SagerBuddy Learning
Offers interactive lessons and a sandbox where users train LoRA fine-tuned models, build RAG pipelines and AI coding agents.
257
Active
#7
Dynamiq Developer tools
Builds and deploys agentic applications with workflows, knowledge retrieval, fine-tuning, and observability on your infrastructure.
221
Active
Free plan
#8
Ertas Developer tools
Fine-tune and deploy open-source language models on-device or in the cloud without machine learning expertise.
182
Active
From $10/mo
#9
Constellation LLM operations MCP · sign-in
Trains post-trained and fine-tuned models on a firm's own documents, such as credit agreements, and deploys them inside its network.
47
Active
#10
BeginzaAI Agents
Trains a private AI model on your device that learns from your documents and conversations without sending data to the cloud.
8
Active
#11
Lightningrod.ai
Trains compact domain-specific models from your operational data without manual labeling.
1
Active
From $1 per use
#12
Nitrode Lifestyle
Benchmarks game-development AI models, supplies contractor-sourced Unreal Engine training data and reinforcement learning environments.
1
Active
#13
Nodegrove LLM operations MCP · open
Attaches a cloud GPU on wake for running open models, ComfyUI workflows and LoRA fine-tuning, with files kept while asleep.
1
Active
#14
ReOpenly LLM operations
Trains compact open-weight models on your own examples, then hosts them behind an OpenAI-compatible API.
1.5k linking domains
Active
From $0.03 per use
#15
Soup CLI Developer tools
Configures and runs fine-tuning and alignment for large language models on consumer GPUs.
45 linking domains
Active
Open source
2025
#16
varCHAR LLM operations
Trains domain-specific language models inside your network without exporting data.
39 linking domains
Active
From $15,000 once
2025
#17
Krira Chunker Retrieval (RAG)
Builds production-ready RAG pipelines with Rust-based chunking, vector orchestration, and fine-tuning.
34 linking domains
Maintained
#18
Langtrain Developer tools
Fine-tunes and deploys open-source language models on your own infrastructure with alignment and monitoring tools.
33 linking domains
Active
Free plan
2024
#19
Promptic Analytics
Benchmarks and optimizes LLM prompts, models, and agent architectures against your business metrics.
25 linking domains
Active
From ≈ $167/mo
#20
RPCS-1 Agent Tuner LLM operations MCP · open
Tunes language model behavior by adjusting response style parameters like tone, directness, and memory handling.
25 linking domains
Active
Open source
#21
BankifAI
Tunes neural network models for efficiency and generates synthetic training data, and also offers staff shift scheduling software.
Little sign of use
Active
#22
Tensorant LLM operations MCP · sign-in
Fine-tunes and serves open-weight models on your cloud GPUs with dataset management and evaluation.
Little sign of use
Active
From $99/mo
Forgestack Developer tools
Generates and deploys a CloudFormation stack that hosts open-weight language models with an API inside your own AWS account.
Active
Overmind Data
Turns an agent's production traces into training datasets, then fine-tunes and evaluates smaller open models against the current one.
96
Active
From $120/mo

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk