Promptfoo: LLM Evals & Red Teaming Platform

Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.

Listed from Product Hunt. Claude Updates summarizes public launches and links back to the source.