diff --git a/api/scripts/test-refs/txt2img-sd-v1-5-512-muffin-unipc-0.png b/api/scripts/test-refs/txt2img-sd-v1-5-512-muffin-unipc-0.png
new file mode 100644
index 00000000..1d86f2f0
--- /dev/null
+++ b/api/scripts/test-refs/txt2img-sd-v1-5-512-muffin-unipc-0.png
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b448184661e4dfdbb381970f2c2e4563882e21abe4db82058cf73e08607a149b
+size 511251