Spring AI Unable to change image generation model for stability API

Bug description I have a basic setup where I call stability image generation API with minimal options and I get a 404 error in API response.

404 - {"id":"0f91b262f6b5728385f167fe34688ec8","message":"The specified engine (ID stable-diffusion-v1-6) was not found.","name":"not_found"}

org.springframework.ai.retry.NonTransientAiException: 404 - {"id":"0f91b262f6b5728385f167fe34688ec8","message":"The specified engine (ID stable-diffusion-v1-6) was not found.","name":"not_found"}

When I tried changing the stability engine/model, it didn't work and I keep getting the same error back from API.

Environment Development environment: Java version: 21 Spring boot: 3.4.4 Spring AI: 1.0.3

Steps to reproduce Here is a sample call to the stability API

stabilityAiImageModel.call(
            new ImagePrompt("A light cream colored mini golden doodle",
                StabilityAiImageOptions.builder()
                    .stylePreset("cinematic")
                    .N(1)
                    .height(512)
                    .model("stable-diffusion-xl-1024-v1-0")
                    .width(512).build())
                );

Above call results in 404 - Not found error mentioned above.

Expected behavior Client should be able to chose the engine/model from stability to use for image generation.