This workflow requires my Comfyui-lmstudio-prompt-enhancer custom node which is installable via Comfy Manager.

🛈 IMPORTANT!!!
You will need to search for, download, and load the model nemotron-3-nano-omni in LM studio. You will also need to start the API server and generate an API Key. Learn how to configure LM Studio here.

My rating of nemotron-3-nano-omni Z-Image Turbo prompt generation ability is: 8.45/10

Prompts critiqued: 12
Average score: 8.45 / 10
Highest score: 8.8 / 10
Lowest score: 8.0 / 10

A critique of nemotron-3-nano-omni's Z-Image Turbo prompt generations abilities:

nemotron-3-nano-omni demonstrates strong aptitude for writing Z-Image Turbo prompts, with a consistent session average of 8.45/10 across 12 scored prompts. The author’s strengths are clear subject-first scene construction, cinematic lighting control, strong atmosphere, and frequent use of renderable material details such as chrome, wet asphalt, fur, bark, moss, glass, and reflective surfaces. The prompts are generally visually coherent and well aligned with Z-Image Turbo’s preference for direct, descriptive image language rather than abstract storytelling. The main recurring weaknesses are mild prompt bloat, occasional composition conflicts such as “centered” versus “off-center,” reliance on fragile elements like exact logos or complex animal poses, and sometimes overloading scenes with reflections, glow, haze, and dramatic lighting effects that may reduce output reliability. Overall, nemotron-3-nano-omni writes polished, above-average Z-Image Turbo prompts with strong visual instincts, but would improve further by tightening wording, reducing redundant atmosphere phrases, avoiding exact brand/logo dependencies, and simplifying fragile physical interactions.