Welcome to the world's most unnecessarily elaborate comparison of image-generation engines, where the scientific method has been replaced with: “What happens if you throw Miley Cyrus into Flux, Stable Image Ultra, Sora, and a few other render gremlins?” Every image here was produced using a ComfyUI workflow—because digging through raw JSON is for people who hate themselves. All images (except Chroma, which choked like a toddler on dry toast) used the prompt: "Miley Cyrus, holds a sign with the text 'sora.com' at a car show." Chroma got special treatment because its output looked like a wet sock. It got: "Miley Cyrus, in a rain-drenched desert wearing an olive-drab AMD t-shirt..." blah blah—you can read it yourself and judge me silently.
For reference: SD3.5-Large, Stable Image Ultra, and Flux 1.1 Pro (Ultra) were API renders. Sora was typed in like an animal at sora.com. Everything else was done the hard way: locally, on an AMD Radeon 6800 with 16GB VRAM and GGUF Q6_K models (except Chroma, which again decided it was special and demanded Q8). Two Chroma outputs exist because one uses the default ComfyUI workflow and the other uses a complicated, occasionally faster one that may or may not have been cursed. You're welcome.