Open source Self-hostable free
In these stacks
LicenseMIT
PriceFree
UsageNo model cost
Model supportmulti
Languagestypescript
GitHub stars22.9k
Last activity2026-07-04
Verified2026-06-28
Verified byseed
A CLI and library for testing LLM outputs, running red-team security scans, comparing prompts and models, and CI-integrated eval pipelines.
Strengths
- Red-team scanning for prompt injection and jailbreaks
- Compares prompts and models side by side with assertion-based testing
Tradeoffs
- Test authoring requires upfront investment
- CLI-first; no hosted dashboard