Free for individuals.
Enterprise-ready for teams.
Individual
Free- Open Source Python Library
- Desktop App (source-available)
- Local datasets with git sync
- Copilot — standard models, rate limited
- Community support
Team
Request access- Everything in Individual
- Copilot — enhanced models, higher limits
- Automatic agent optimization
- Priority access to new features
- Email support
Enterprise
Custom- Everything in Team
- SSO / SAML
- Annual contracts & procurement support
- SLA & priority support
- Dedicated solutions engineer
- Custom onboarding & training
Copilot: AI that helps you build AI
Copilot runs on our servers and helps you build and optimize your AI.
AI Assistant
Chat with an AI that understands your project, datasets, and evals.
Auto-Generated Evals
Automatically generate LLM judges and evaluation datasets, AI-guided.
Kiln Optimizer
Automatically optimize prompts and agent designs.
| Feature | Individual | Team & Enterprise |
|---|---|---|
| AI Assistant | Standard, rate limited | Advanced, higher limits |
| Auto-Generated Evals | Standard | Advanced |
| Kiln Optimizer | — | Advanced |
Why our pricing works this way
Open and inspectable
The Python library is MIT licensed. The desktop app is source-available on GitHub — read it, audit it, run it yourself.
Your data is yours
Kiln isn't traditional SaaS. Datasets and evals live on your machine and sync through a git repo you control. We don't host your data — we don't even see it unless you opt into Copilot features.
Our business
We charge for Copilot features which run on our servers. The Enterprise tier covers what organizations need: SSO, contracts, security reviews, and a human you can call.
Ready to get started?
Download Kiln and start building. Talk to us when you're ready to scale.