Step Image Edit 2 image model released with leading performance and efficiency

Step Image Edit 2图像模型发布，性能领先且高效

StepFun released the 3.5B-parameter Step Image Edit 2 model, which ranks first in KRIS-Bench overall, factual, and conceptual categories, and is now available on the Stepfun Open Platform.

Why it matters: HKR-H/K/R all pass: the hook is a 3.5B image-editing model topping KRIS-Bench, with concrete launch details. Vendor-only sourcing and no independent test or pricing keep it at the low featured band.