nano-banana-prompting

Prompt crafting for Gemini image models relies on structured techniques—Narrative, Structured, and Vibe modes—that guide your description. The Nano Banana Prompting Guide walks you through prompt structure, technique selection, and iteration workflows to produce consistent, high-quality results.

Gemini image generation supports multiple prompting techniques: Narrative for storytelling, Structured for precise specifications, and Vibe for aesthetic direction. Each technique applies differently to slides, infographics, and image edits, allowing you to match your desired output style and branding rules.

Yes. Gemini prompts support optional negative prompts to exclude unwanted elements and aspect-ratio controls to enforce output dimensions. These controls integrate into both Direct Generation Mode and Interactive Prompting Mode for refined image creation.

Nano Banana Prompting supports environment-variable configuration for model and output settings, plus heredoc scripting for rapid one-off tasks. This enables automated image generation pipelines that adapt Gemini model behavior without manual intervention.

Direct Generation Mode executes prompts immediately with configured settings, while Interactive Prompting Mode guides you through prompt refinement and iteration. Interactive mode helps you develop and test prompts step-by-step before final generation.

Brand-styling rules are optional but recommended for consistency. The Skill applies style-detection and branding rules to enforce visual coherence across slides, infographics, and edits, ensuring outputs align with your design standards.