qwen2-1/text-to-imagetext-to-image8 paramsThe only Qwen generation with a transparent background, a WebP output and a 9:21 ratio. Names the shape `aspect_ratio`, unlike Qwen 1, 2 and 3, which all use `image_size`. The Playground page for this model documents aspect_ratio defaulting to 3:2 and nsfw_checker to true; the OpenAPI schema says 1:1 and false. The schema is what the server reads.