Open-weight AI differs from open-source AI in licensing and control

The piece outlines a five-stage operating map for open-weight AI, emphasizing the need to identify released artifacts, read license permissions, assess reproducibility, evaluate security, and match openness claims to intended use. It warns against conflating open-weight AI with fully open-source models, as this oversimplification can mislead buyers, researchers, and operators. The article stresses the importance of testing mechanisms under varied conditions—including ordinary, difficult, and adversarial cases—to ensure robustness and accountability.