# Nano Banana > Use to write great prompts for Nano Banana (Google's Gemini image model: Nano Banana Pro = Gemini 3 Pro Image) to generate or edit images for social media — the image-prompt-craft mini-skill. Run when the user wants a nano-banana / Gemini image prompt, an AI image for a post (quote graphic, carousel slide, thumbnail, infographic, product shot, ad creative), or conversational image editing. Reads brand-profile for brand colours/style. Strengths: best-in-class legible in-image text (route typography/layout-led design to ideogram), multi-image consistency, conversational editing, and Google's photoreal lane (Imagen deprecated); surreal art stays Midjourney's. Teaches prompt anatomy, the text-first approach, reference-image consistency, and per-platform aspect ratios. Honest: SynthID watermark + AI disclosure; never real identifiable people or copyrighted characters/logos; verify spelling/data. The API/connection and WoopSocial upload flow live in tools/integrations/nano-banana.md. - Skill: `social-media-skills/nano-banana` (Agent Skill, multi-file: 6 files) - Install (CLI): `npx skillmds add social-media-skills/nano-banana` - Raw SKILL.md: https://api.skillmd.com/api/skills/social-media-skills/nano-banana/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Design & Media - License: MIT - Author: social-media-skills (https://skillmd.com/u/social-media-skills) - Updated: 2026-09-09 - Page: https://skillmd.com/skills/social-media-skills/nano-banana --- # Nano Banana (image prompt craft) Write prompts that get studio-quality images out of **Nano Banana** — Google's Gemini image model (**Nano Banana Pro = Gemini 3 Pro Image**; the Flash variant is faster/cheaper). This is the **prompt-craft** layer of a three-layer setup: - **Connection/API** (model IDs, auth, the *generate → upload to WoopSocial Media → attach* flow) → `tools/integrations/nano-banana.md`. - **Prompt craft** (this skill) → how to ask for the right image well. - **In-skill application** → e.g. `carousel-writer`'s image-prompt-pack. > Fast-moving area — re-verify model names/capabilities quarterly. ## Reach for Nano Banana when… (match the job) Its real strengths: **legible in-image text** (best in class), **multi-image/character consistency**, **conversational editing**, and **Search-grounded infographics**. Reach **elsewhere** for **typography/layout-led design** (→ `ideogram`) or **surreal/fine-art** aesthetics (Midjourney). (**Imagen**, the former photoreal sibling, is **deprecated** — Gemini API shutdown Aug 17, 2026 — so Google-side photoreal work now lands here.) Don't default it to every job. (Details: `references/when-and-how-to-prompt.md`.) ## Step 0 — Read the brand + the job Load `brand-profile.md` (colours, visual style, do/don't). Identify the **job** (quote graphic / carousel / thumbnail / infographic / product shot / background / ad / edit) and the **platform aspect ratio**. ## Step 1 — Write the prompt (natural language, not keyword spam) Describe, don't pad. Include **subject · composition/camera · action/context · lighting/atmosphere · style/medium · constraints + exact text**. Drop "4k, masterpiece, trending on artstation" tokens — modern Gemini models reason over natural language. Bake in the **brand** palette/style. Set the **aspect ratio**. Iterate cheap at 1K, finalize at 2K/4K. See `references/when-and-how-to-prompt.md`. ## Step 2 — Use the superpowers deliberately - **Text:** put the **exact words in quotes** + font + placement; settle the **copy first** (the text-first approach), keep it short, and **verify the spelling** in the output. - **Consistency:** use **reference images** and a **locked style description**; generate a set **one at a time** ("everything the same except X"); hold the aspect ratio; review for drift. - **Editing:** natural-language changes to a hero image for locale/seasonal/A-B variants. See `references/text-and-consistency.md`. ## Step 3 — Pick the recipe Adapt a pattern for the job (quote graphic, carousel set, thumbnail, infographic, product/lifestyle, background, ad), with the right aspect ratio and brand grounding. See `references/social-recipes.md`. ## Step 4 — Verify, disclose, ship - **Verify** rendered text and any infographic **data** before publishing (the model can misspell / misplace facts). - **Disclose** AI generation per platform/region (Meta "Made with AI", EU AI Act); every image carries a **SynthID** watermark (+ C2PA) — don't strip it or pass the image off as a non-AI photo. - **Ship:** generate per the integration guide → **upload bytes to WoopSocial Media → attach to the post** via `scheduling-and-queue`. WoopSocial doesn't generate images. ## Quality bar — self-check - Did I **match the tool to the job** (and say when to use another model)? - Is the prompt **natural-language and specific** (subject/composition/lighting/style/text), **brand- grounded**, with the **right aspect ratio**? - For text: **exact words in quotes** + font + placement, **copy-first**, **spelling verified**? - For sets: **references + locked style**, one-at-a-time, reviewed for drift? - Did I handle **SynthID + disclosure**, **verify text/data**, and **refuse real people / IP**? - Did I point to **`tools/integrations/nano-banana.md`** for the API + WoopSocial flow (no claim that WoopSocial generates images)? ## Edge cases & pushback - **Photoreal headshot / surreal art** → suggest the better-fit model; don't force Nano Banana. - **"logo, 4k, masterpiece, trending…"** → rewrite into a specific scene description; drop token spam. - **Real person / copyrighted character / brand style** → refuse; offer an original alternative. - **"Post it as a normal photo"** → SynthID + disclosure; don't disguise AI imagery. - **Long paragraph of in-image text** → expect errors; shorten + verify (or finish in a design tool). - **"Generate it in WoopSocial"** → WoopSocial doesn't generate; this skill prompts the model, then the image is uploaded to Media and attached. ## Related - `tools/integrations/nano-banana.md` — API/model IDs, auth, pricing, the upload-to-WoopSocial flow. - `carousel-writer` (image-prompt-pack), `reels-script` — consuming skills; `ideogram` — typography sibling. - `brand-profile` — the visual brand; `caption-writer`/`hook-writer` — the in-image copy. - `scheduling-and-queue` — attach the image to a post and publish. ## References - `references/when-and-how-to-prompt.md` — when to reach for it vs other models, and the prompt anatomy. - `references/text-and-consistency.md` — the two superpowers: legible in-image text and multi-image consistency/editing. - `references/social-recipes.md` — adaptable prompt patterns per social job + aspect ratios. - `references/examples.md` — weak→strong prompts, a consistent carousel, an edit, and honest scope.