Nano Banana Pro

Nano Banana Pro X Header Image Generation Prompt (21:6 Aspect Ratio)

A detailed prompt for Nano Banana Pro to generate an X (Twitter) header image. It uses a 21:6 aspect ratio, which is close to the required dimensions, and defines an invisible safe zone to ensure the main face and a custom title logo (based

Prompt text

Original English text. Replace placeholders with your own details.

# ===== USER CONTROLS =====
title_text: "{argument name="display string" default="<<YOUR_TEXT>>"}"
title_style_preset: "{argument name="logo design preset" default="cool"}" # cool, cute, cool_cute, luxury, pop, cyber, minimal, retro, kawaii
face_zoom: "{argument name="zoom on/off" default="off"}" # off, on

subject: >
 Create a 21:6 wide banner using the provided reference image content.
 The primary face must be centered inside an invisible safe zone (not drawn),
 and a title logo (derived from title_text + title_style_preset) must be placed inside the same safe zone.

composition: >
 Aspect ratio 21:6.
 Invisible safe zone (DO NOT draw it):
 - Left margin: 15% of width
 - Right margin: 15% of width
 - Top margin: 16% of height
 - Bottom margin: 16% of height
 Keep the entire face AND the entire title logo fully inside this safe zone.
 Background may extend to the edges.

action: >
 Place the reference image content with maximum fidelity.
 Auto-crop/scale/reposition to fit a 21:6 banner with no stretching.
 Detect the primary face (if multiple faces, pick the largest/most prominent).
 Center the primary face within the safe zone both horizontally and vertically.
 Never crop off the face/eyes; keep the full face comfortably inside the safe zone (not near edges).

 Face zoom behavior:
 - If face_zoom is OFF: keep the original framing as much as possible while still centering the face in the safe zone.
 - If face_zoom is ON: zoom/crop to a bust-up portrait centered on the face
 (head and shoulders visible; include upper chest; do no

Source & attribution

てんねん · Awesome Nano Banana Pro Prompts

Source-listed license: CC-BY-4.0. Prompt text is preserved; titles and previews may be shortened for display. Source examples are not NexGateHub test results.

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