Sana by Nvidia

This tool generates high-quality images from clear text prompts with flexible, precise control. Start with a concise description, then refine with negative prompts to remove unwanted elements. Tune guidance scale for how strictly the image follows your prompt, and adjust pag guidance to shape style and structure. Use 10–20 steps for quick previews and 30–50 for polished, detailed results. Keep resolutions reasonable to balance speed and quality, and reuse seed values to maintain a consistent look across iterations. Ideal for concept art, marketing visuals, and professional mockups where repeatability, fine control, and creative exploration all matter.