OpenJ / 001Systems for curious developers
Explore AI
from the JVM.
Models, tokenizers, experiments, and tools for people who want to understand what happens beneath the API.
Reckoning Tools
Useful ways
to begin.
Start with a practical tool, follow it into the runtime, and reuse the pieces that help with your own work.
Make tokens tangible.
Explore how models read text from Groovy with the immediacy of a Python shell.
Shape what models can say.
Guide generation into patterns, choices, and typed Java results.
Find vulnerabilities with approval.
A local model searches a repository, reads the file it found, and returns an exact vulnerable path.
Give a terminal a local brain.
A tiny coding assistant backed by a running Reckoning model.
Reckoning Components
What makes
the tools run.
These are the runtime pieces that make local model workflows possible, measurable, and reusable.
Airlock
Put the tools
behind a boundary.
Airlock is a reproducible container workspace for agent-assisted development, from Java builds to browser-based UI work.
Current signal
JavaPrimary runtime
GroovyFast experiments
JQ4Quantized models
MCPTools in motion