
Run automated red-teaming and model evaluations for free using the open-source CLI tool Promptfoo. Optimized for developers prioritizing reliability, this local engine includes unlimited evaluations and 10,000 monthly security probes at $0 cost. Compare models like GPT-4 and Claude side-by-side to minimize API spend without hidden software fees.

Benchmark top AI models against trick questions to expose reasoning failures for free using Simple Bench. Filter model errors via the free "Council" app to secure consensus answers, ideal for developers validating Pro plan ROI. Unlike subjective leaderboards, this utility provides falsifiable data to authenticate LLM logic before you subscribe.

