Open source Self-hostable free
LicenseApache-2.0
PriceFree
UsageNo model cost
Model supportmulti
Languagespython
GitHub stars6.6k
Last activity2026-07-03
Verified2026-06-28
Verified byseed
An open-source toolkit for programmable LLM guardrails, including topic control, safety, security, and dialog flow enforcement via Colang or Python.
Strengths
- Programmable rails for topic, safety, and security
- Backed by NVIDIA with active development
Tradeoffs
- Colang DSL adds a learning curve
- Heavier than lightweight scanner libraries