smevals

Simon Willison introduces smevals, a small eval suite for models, prompts, and harnesses

Simon Willison published a post introducing smevals, a lightweight evaluation suite designed for testing AI models, prompts, and agent harnesses. The tool appears aimed at practitioners who want a quick, practical eval framework rather than large-scale benchmark infrastructure. As a tier-2 commentary/tooling post from a respected practitioner voice, it is useful for those tracking the evaluation and agent-tooling ecosystem.