kitio.aiAdded Oct 28, 2026
Union.ai
Free trial · $950/moDurable AI workflow runtime that runs inside your own cloud
What is Union.ai?
Union.ai orchestrates data processing, model training, inference and AI agents as Python workflows that run on your own infrastructure. Built by the team behind open-source Flyte, it resumes failed steps instead of restarting them and keeps data inside your security perimeter.
A Union control plane coordinates work while the compute runs in your AWS, GCP or other cloud accounts. Teams use it for fine-tuning, reinforcement learning, computer vision and production agents, with artifacts, lineage, triggers, distributed training and scheduling across clusters.
An inference gateway governs both third-party model APIs and self-hosted models on your own GPUs. Billing is usage-based per action and per vCPU, memory and GPU hour, with volume bands that lower the rate, and a self-service deployment is offered through AWS Marketplace.
Features
- Durable, resumable workflows
- Runs in your own cloud
- Distributed training
- Inference gateway
- Multi-cluster scheduling
- Lineage and artifacts
Tags
Releases
+ Submit new release- Listed
Union.ai was added to the directory.
Organization
Union.ai
🇺🇸 United States
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Free trial
- Paid options from
- $950/mo
- Billing frequency
- Monthly
Union.ai plans
Team
$950/mo
- Minimum, credited back as usage
- 2 active clusters
- 30-day data retention
- Standard 12x5 support
Enterprise
Custom
- Annual commit credited to usage
- Volume discounts on every meter
- Multi-region and multi-cloud
Prices in USD, checked Oct 29, 2026. Plans change often, so confirm on the Union.ai site.Official pricing
Sponsored
Your AI tool here
A Featured launch puts your tool in this spot and on the home page for a week.
Top Union.ai alternatives
View allModels & APIs
Experiment tracking and LLM observability, now part of CoreWeave
Models & APIs
Open-source Python framework for ML and AI workflows
Models & APIs
Enterprise platform to build, run and govern AI agents and models
Compare Union.ai
If you liked Union.ai
GPU cloud for AI training and inference with managed MLOps
PaidModels & APIsMade in NetherlandsOpen-source platform for ML experiments, models and GenAI tracing
FreeModels & APIsMade in United StatesGPU cloud and Gradient notebooks for training and deploying models
Freemium · $8/moModels & APIsMade in United StatesOpen-source model serving and a managed platform for AI inference
FreemiumModels & APIsMade in United StatesModel serving and orchestration for private AI on any infrastructure
FreemiumModels & APIsMade in Netherlands
Pros and cons
Pros
- Data never leaves your infrastructure
- Failed steps resume where they stopped
- Plain Python on top of open-source Flyte
Cons
- $950 monthly minimum after the first month
- Meant for platform teams, not beginners
- Usage pricing takes effort to estimate
Prompts & results
No prompts yet. Add your own prompt and output to help others use this tool.
Share a prompt
Reviews
Q&A
What is Union.ai?
Union.ai orchestrates data processing, model training, inference and AI agents as Python workflows that run on your own infrastructure. Built by the team behind open-source Flyte, it resumes failed steps instead of restarting them and keeps data inside your security perimeter.
How does Union.ai relate to Flyte?
Flyte is the open-source orchestrator, and Union.ai is the managed production runtime built on it. You can start with Flyte and move to Union later.
Can I try Union.ai before paying?
Yes. The first $950 of usage in your first month is free, and no card is needed at signup.
How much does Union.ai cost?
Union.ai is free trial, with paid plans from $950/mo.
Is there a free version of Union.ai?
No, but you can try it free before paying.
What are the main features of Union.ai?
Durable, resumable workflows, Runs in your own cloud, Distributed training, Inference gateway, Multi-cluster scheduling, Lineage and artifacts.
Who makes Union.ai?
Union.ai is made by Union.ai.
What are the best alternatives to Union.ai?
Popular alternatives include Flyte, Weights & Biases, Metaflow.